Cool Winter hair color: blue-black, ash brunette, and icy platinum
Blue-black at one end, icy platinum at the other. Your palette names shades at both extremes of the salon scale, which makes it the widest hair range of the twelve subtypes, and it names nothing at levels 4 to 6, the stretch where dark hair lifted partway shows the warmth it carries inside. Most Cool Winters (True Winter, in some systems) start at a level 2 or 3, so the real choice is between keeping that depth cold and glossy and committing to the top. Below: the codes to say, how light is light enough, which reds work, gray, and the colors to leave alone.
- Levels 3 to 1, or 8 to 10
- Cold tones only
- What to say at the chair
Your range, in salon levels
Start here
Two numbers, and a palette with a hole in the middle
Salon color comes as a pair of numbers. Before the point sits the level, how light the color is, counted from 1, black, to 10, the palest blonde. The second, after the point, is the tone: whether the shade leans ash, violet, gold or copper. Dark and cool means something different to every colorist. A level 3 ash means one thing, and it is the thing you asked for.
Your palette stretches further along that scale than any other subtype’s. At the deep end it names blue-black at 1, dark ash espresso and cool aubergine at 2, and ash brunette at 3. At the light end: lavender at 7, silver ash at 8, icy platinum at 10. Between them, at 4, 5 and 6, there is nothing. That gap is the most useful fact on this page. A Cool Winter looks right with hair that is either deep or icy, and tired with hair that stops halfway.
Keep the tone cold, and pick an end. Stay within about two levels of your own dark, three at the very most, and the color grows out quietly. Or go to the top of your palette - silver at 8, platinum at 10 - and treat it as the commitment it is. The warm middle is the one place not to land.
The salon scale, and your part of it
- L10 lightest
- L9
- L8
- L7
- L6
- L5
- L4
- L3
- L2
- L1 deepest
The lit rungs fall into two clusters with three dark rungs between. At 3, 2 and 1 sit the deep shades, where most Cool Winters are born. Levels 10, 8 and 7 are its icy and jewel end, and 7 is lit only by lavender, a fashion color. Nothing is named at 6, 5 or 4. If your own hair is naturally there, it is still yours: the cold tone carries over unchanged. What the gap marks is where a lift from dark hair should not stop.
What is on this page
- What to ask for One sentence for the chair, the cold tone digits at level 3, and what a shadow root saves you.
- Platinum? Yes, icy, all over or in pieces. The blondes that fail are the warm ones a dark base lands on halfway.
- Red and berry Aubergine and black cherry are yours. The red turns wrong where it starts leaning orange.
- Going silver Silver is already in your palette. Four ways to handle the switch, and the one that looks unplanned.
- Keeping it cold Platinum turns yellow and dark brown turns red. The two fixes are opposite colors of shampoo.
- Colors to avoid One ordinary face in twelve wrong shades, four of them cool.
- The level list Eight shades, the level to ask for with each, and the tone digits, in one block to show a colorist.
What to ask for at the chair
A Cool Winter books one of two very different appointments. Either the depth stays and the work is making it colder and shinier, which is a gloss or a demi-permanent color at your own level. Or you are going to the icy end, which means lightener, a toner and a standing date every few weeks. The sentence below is for the first. The note under it rewrites it for the second.
Jumps to the board. Pick your natural level there and your stretch of the ash column lights up.
The 5.1 is a cool ash; 5.13 has a nude or cool beige affect; 5.3 has a warm gold tone; 5.34 a primary tone of gold and secondary of copper; and 5.4 has a warm copper tone.
Say thisI am about a level 3 naturally. I would like to stay at a level 3 ash - a 3.1 - or go one step deeper, as a gloss or demi, glossy and cold, with no gold or copper in the formula.
Swap in your own natural level for the 3. Going icy instead? Then it becomes: I am a level 3 and I want a level 10 platinum, toned cool with violet, with a shadow root so the regrowth is soft - and I know it takes more than one visit. Colorists respect a client who knows the second half.
Three choices inside the sentence
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Which end
Your palette names deep shades at 3, 2 and 1 and icy ones at 8 and 10, with nothing at 4 to 6. So the first decision is not how light, but which end. Staying near your own depth is a gloss or a demi-permanent color. Going to the top is a lightening service, usually in stages.
“I am a 3. Keep me at a 3, or take me to a 2.” -
Which cold
After the point: .1 ash for a smoky brown, .2 violet for aubergine and berry, or a clean .0 natural checked for gold. For blue-black, ask for a 1.1 or a blue gloss over black. On the icy end, platinum is toned with violet to cancel yellow, often written as a 10.1 or 10.2.
“Ash, a 3.1 - or violet, a 3.2.” -
Pieces or none
A deep, even color is complete on its own. If you want interest without lightening, your palette names sapphire and lavender as pieces on a dark base: a few face-framing strands, or a section hidden underneath that shows when the hair moves.
“Two sapphire pieces at the front, the rest even.”
Reading the number on the tube
Every tube is labeled level.tone. In the four frames below, one woman stays at level 3 throughout, so the depth never moves and only the tone digit does. Two of the digits keep her face clear and two warm it up.
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3.1 Ash
Ash brunette, the shade your palette names at level 3. Smoky, and her skin looks cleaner beside it.
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3.2 Violet
The same depth with a berry cast. Dark indoors, aubergine in daylight.
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3.3 Gold
Gold at level 3. The hair looks softer, and a yellow cast creeps into her skin.
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3.4 Copper
Copper at the same depth. The strongest clash on the page, and it shows in her cheeks first.
- 3.1 Ash The chip is your ash brunette, named at level 3. Ash holds back the red-orange that every dark head carries under its color, so the brown stays smoky rather than turning warm as it ages.
- 3.2 Violet The chip is your cool aubergine’s level 3 value. Most brands use .2 for violet, a few for a green-leaning matt, so say the word violet along with the number.
- 3.0 Natural No tone added. The chip is your dark ash espresso’s level 3 value, and at this depth a clean natural is a real option for you. Ask whether the brand’s natural line is mixed with gold; some are.
- 3.3 Gold The warmth hidden inside many “rich” browns. Beside a cold complexion it reads yellow. The chip is the avoid list’s golden blonde taken down to level 3.
- 3.4 Copper Orange-red, and the shade your palette calls the strongest clash with cold skin. The chip is the avoid list’s copper red taken down to level 3.
Three of the chips are your palette’s own level 3 values: ash brunette where it is named, and the aubergine and espresso ramps at that rung. The gold and copper chips are built to the same lightness from two shades on your avoid list, so the tone digit is the only difference between the five. At level 3 the squares sit close together; the photographs separate them better.
The salon board, and your column in it
Colorists choose from a board that crosses depth with tone. Keep only the Cool Winter squares and it becomes one cold column that runs the full height of the board, from blue-black to platinum, with the warm side nearly empty.
Outlined: ash, from level 10 down to level 1 - platinum at 10, silver ash from 9 to 6, ash brunette from 4 to 2, blue-black at 1. Level 5 is empty because nothing on your palette sits there. Violet (lavender above, aubergine below) and natural (espresso) are yours too; the warm side holds only avoid shades and salon codes.
Every square is one of your palette’s own values, not a manufacturer swatch, so any brand’s 3.1 will differ from it a little - say ash along with the number. One shade is missing from the board: sapphire, a direct dye placed as pieces, which has no level.tone code. On the natural column, the two light squares are avoid shades - dirty blonde and ash light brown - which is the middle of the scale failing in miniature.
And how it is placed
The top pair is one woman in one ash brown, first as a single even color and then with the palette’s sapphire placed as pieces. The bottom four come from a second woman, a natural level 3, photographed from above three weeks after each appointment. That is where the cost of the icy end shows.
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One even color
One glossy shade, root to ends. On a Cool Winter this is already a finished look, and the cheapest to keep.
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Sapphire pieces
The same brown with a few sapphire strands at the front and underneath. Color without any lightening of the base.
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A hard regrowth line
Silver ash taken flat to the scalp, five levels above her own. Three weeks later, a dark stripe.
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A shadow root
The same silver with her own dark kept at the root and blended down. The regrowth has nowhere to show.
And what the distance costs you
A root is only as loud as the gap between the new growth and the colored length. One natural level 3, three weeks after each appointment: going darker leaves almost nothing to see, and going to the top of the palette leaves a stripe.
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Two levels deeper
Blue-black over a natural 3. The new growth is a soft brown shadow you have to hunt for.
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Seven levels up
Platinum all over, seven levels up. It is in your palette, and this is what it asks: a root touch-up every four weeks.
The phrasebook
Say this
- “A gloss at my own level, cold”
- More shine and a colder cast with no lightening - the appointment most Cool Winters actually need.
- “No gold, no copper in the mix”
- Many browns are blended with gold to look natural. Saying it keeps the warmth out.
- “Blue-black, glossy - a 1.1”
- Black with a cold sheen, instead of a flat black that reads as a helmet.
- “Platinum, toned with violet, shadow root”
- The icy end done properly: no yellow, and regrowth that grows in soft.
And what these get you
- “Something sun-kissed”
- Warm highlights, usually honey or caramel - both on your avoid list.
- “Lift it a few shades, just to soften it”
- The whole head lifted into levels 5 and 6 - exactly where your palette has nothing, and where dark hair shows orange.
- “A rich chocolate brown”
- Often chocolate with red in it. Your avoid list names warm chocolate for exactly that reason.
- “Blonde, but low-maintenance”
- A dark blonde halfway up the scale, and the brassy one at that. On you, low-maintenance means staying dark.
So the brief is a choice of ends: your own depth kept cold, or the icy top of the palette kept up properly. Which leaves the question most people arrive with - how blonde can a Cool Winter go?
Can a Cool Winter go blonde?
Yes, and further than almost anyone: your palette names icy platinum at level 10 and silver ash at 8. What it does not name is anything golden, or anything halfway. So the useful question is not how light, but which blonde. Two women below: one taking her whole head up the scale, one keeping a dark base and changing only the pieces.
Yes - as long as it is icy, and as high as level 10. Platinum and silver suit you all over or as pieces. The blondes that fail are the warm ones: honey, golden, and the dirty blonde that dark hair lands on when it is lifted part of the way. Within three levels of your own color the change is easy to keep; the icy top is a commitment, and worth it only if you will keep it up.
A natural level 3 on fair skin, the whole head lifted one step at a time. The tone is kept cool at every level except the one a partial lift tends to leave behind.
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Her natural, L3
Her own dark brown. Already the contrast your palette is built on.
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The middle, L7
Where a lift from dark tends to stop: a flat beige blonde. On your avoid list as dirty blonde.
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Silver, L8
Silver ash, toned cold. Five levels up, and it looks deliberate rather than faded.
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All the way, L10
Icy platinum, the top of the palette. Her dark brows stay dark, which is what makes it work.
A natural level 2 on olive skin, the base kept dark. Only the color of the pieces changes.
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Her natural, L2
Her own near-black. Dark ash espresso is the name your palette gives it.
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Platinum pieces
Platinum as a few pieces around the face. The top of the palette at a fraction of the upkeep.
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Lavender pieces
Lavender violet, the palette’s fashion shade, worn the way it names it: as pieces on dark.
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Honey pieces
The same placement in honey. It looks sun-damaged on her rather than chosen.
Find the platinum in both rows. It is the same hex: all over on the first woman, a few pieces on the second, and it works both times. The two frames that fail are the dirty blonde and the honey pieces, and neither is lighter than the platinum. They fail on warmth. For a Cool Winter, which blonde matters far more than how blonde.
Why does a partial lift go wrong? Lightener takes dark hair up through red, then orange, then yellow before it reaches anything pale enough to tone icy. Stop at level 6 or 7 and the hair is sitting in its orange stage. It can be toned beige, but the warmth is still inside and comes back as the toner washes out. The two ends of your palette avoid that stage: the deep shades never enter it, and platinum goes all the way through it.
All the way through costs something. Taking a level 3 to a level 10 is usually done over two or more sessions, with a bond-building treatment in the lightener, and it needs a toner and a root touch-up every four to six weeks for as long as you wear it. That is why the second row exists: platinum or lavender as pieces gets you the icy end with a root that can grow for months.
If you are going icy
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Book it as a project
From a dark natural, platinum takes more than one visit. Ask for it in stages, with a bond treatment, and a toner at the end of each.
Two sessions, bond treatment, toned cool. -
Ask for a shadow root
Your own dark melted into the first few centimeters. The regrowth arrives soft instead of as a stripe, and the gap between appointments stretches.
A soft shadow root, please. -
Keep the brows dark
Dark brows are what turn icy hair into contrast instead of a wash of pale. Leave them exactly as they are.
Do not touch my brows.
Blonde, then, is a question of temperature more than height. Red works the same way: yours, until it starts to lean orange.
Can a Cool Winter wear red?
A red, yes. Your palette names one - cool aubergine, a dark berry-violet - and its note says it plainly: keep it berry, not red-chestnut. So the line is not how bright the red is. It is which way it leans. Below, two women at a single depth, with the red swinging from blue to orange.
Yes, if it leans blue. Aubergine and black cherry work; a true red is the edge; red chestnut and copper, the reds that lean orange, are past it - copper is the strongest clash your palette lists. Lighter or darker does not rescue a red that leans the wrong way.
Olive skin with a cool undertone. Level 3 in all four frames, the red swinging from berry to brick.
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Aubergine, L3
Cool aubergine, the red your palette names. Berry-violet, and it makes her eyes look brighter.
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Black cherry, L3
A step toward red, still blue underneath. Deep wine rather than brown.
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True red, L3
A red leaning neither way. It holds, but her skin has started borrowing its warmth.
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Red chestnut, L3
The same depth, turned orange. Brick-red, and her face looks flushed instead of fresh.
Deep brown skin with a cool undertone. The same four reds, the same depth.
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Aubergine, L3
Cool aubergine, the red your palette names. Berry-violet, and it makes her eyes look brighter.
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Black cherry, L3
A step toward red, still blue underneath. Deep wine rather than brown.
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True red, L3
A red leaning neither way. It holds, but her skin has started borrowing its warmth.
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Red chestnut, L3
The same depth, turned orange. Brick-red, and her face looks flushed instead of fresh.
Read each row from left to right. All eight frames are level 3; what moves is the direction of the red, from blue-violet to orange. Only the aubergine carries a chip, because it is the one red your palette names at this depth; the other three are built at the same lightness and carry none. The two rows agree: on olive skin and on deep skin the line falls in the same place, because the warmth is in the dye, not in the complexion under it.
Why does aubergine work when red chestnut does not? Both are dark red-browns. Aubergine carries blue and violet, the same cold undertone as your skin, so the two agree. Red chestnut carries orange, and orange next to cold pink skin makes the skin look red rather than rosy.
In the salon, ask for the violet side by number: a 3.2 or a 3.26 for aubergine, a 3.5 paired with a violet or ash second digit for black cherry. A .4 anywhere in the code - 3.4, 3.54 - turns it copper.
If you want color but not red, your palette has two more: sapphire and lavender, as pieces on a dark base. Both are usually direct dyes rather than permanent color, so they fade out rather than grow out.
Dark reds also show gray sooner than browns do: a white root reads loudly against berry. That is the next question.
Going gray as a Cool Winter
Here your palette is a step ahead of you. It already lists silver ash - gray from pale silver to graphite - as a color to choose on purpose. So gray is not the problem. The problem is the months when silver and old dark dye share one head. Four ways to handle it, on two women.
Better than yes: silver is already on your palette. Cool, clear and high-contrast, it is the gray most seasons wish they had. Covering it with dark dye is the high-maintenance route; brightening it with a silver toner is the calm one; and full silver works on light skin and on deep skin alike.
Fair cool skin, mid forties, her dark hair starting to turn.
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Covered
Ash brown over the gray. Right for two or three weeks, then a white line opens along the part.
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Blended
A silver toner and a few silver ash pieces. The gray looks bright and chosen instead of like a root.
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Growing it out
Silver at the root, dark dye below it: the stage that looks unplanned. Keep it as short as you can.
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Full silver
Even bright silver. On fair skin it lowers the contrast a little, and her dark brows put it straight back.
Deep skin with a cool undertone, late fifties. The same four choices.
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Covered
Ash brown over the gray. Right for two or three weeks, then a white line opens along the part.
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Blended
A silver toner and a few silver ash pieces. The gray looks bright and chosen instead of like a root.
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Growing it out
Silver at the root, dark dye below it: the stage that looks unplanned. Keep it as short as you can.
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Full silver
Silver curls against deep skin: the widest contrast in the row, and the kind a winter wears best.
Put the two final frames next to each other. On fair skin, silver sits close to the skin and her dark brows and eyes carry the contrast. On deep skin, silver becomes the brightest thing on the face and the contrast is the whole look. Both work, for opposite reasons. And in both rows the third frame is the one to get through quickly.
The study quoted above asked 120 people to rate faces twice: once in their own hair color and once edited to gray. The gray versions read older and less attractive, and the men in the study - not the women - rated them less trustworthy. The gray was plain and digitally applied: no toned silver, no blending, nothing chosen. That is the version this page is steering you away from.
What makes your gray look intended is the tone. Silver with a cool, slightly blue cast matches your palette; silver that has gone creamy or yellow does not. A silver toner every few weeks - the same kind used on platinum - keeps it on the right side.
Men (but not women) also perceived faces with gray hair as less trustworthy.
Silver and platinum have the same weakness: with the pigment gone, yellow creeps in. Dark cool dye has the opposite one. Keeping either cold is the next section.
Keeping it cold, between appointments
Both ends of your palette drift the same way, toward warm, from opposite directions. Platinum does not get darker: it turns yellow. Dark ash does not get lighter: it turns red. The row below follows the harder of the two, platinum, over ten weeks.
Nothing is getting darker. The color is losing its toner. Lightened hair is pale yellow underneath, and the violet toner that made it icy is the first thing to wash out. By week ten it is exactly as light as on day one, only straw-colored. The fix is to put the cold back, not to lighten again.
Ten weeks of one level 10 platinum, photographed at the same close crop each time. It never gets darker; the pearl sheen goes and yellow comes up through it.
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Day one
Icy platinum, fresh from the toner.
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Three weeks
A first creaminess in daylight. Just as light.
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Six weeks
Pale butter-yellow now. Still level 10.
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Ten weeks
Straw-yellow, heading for golden blonde on your avoid list. Not one shade darker.
All four chips share one lightness. What moves is hue, from neutral toward yellow, and saturation, up about eightfold; at week ten the hue is less than a degree away from golden blonde on your avoid list. Nothing got darker, so lightening again treats the wrong problem and costs the hair its condition. What it needs is the toner back.
The fix is on the color wheel. Yellow is cancelled by violet, which is why purple shampoo belongs to platinum and silver. Dark ash turning red needs the opposite: red-orange is cancelled by blue, so a blue shampoo or mask is the one for brunettes. Using the wrong one does very little.
Sun adds to it. In the study quoted above, lamp and sunlight changed every hair sample tested - mostly in lightness, but also along the yellow-blue axis, which is exactly the one platinum drifts along. The samples were undyed, so carrying the result over to toned platinum is our inference. A hat on long days outside is cheap insurance either way.
The luminosity difference parameter was the major contributor to the hair color changes, but significant changes in the red-green and yellow-blue parameters of every hair were observed.
Four things that keep it cold
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Violet for yellow, blue for red
A violet shampoo or mask once or twice a week keeps platinum and silver icy. Brunettes use the blue version for the red that shows through dark ash.
Purple shampoo on Sundays, three minutes. -
Fewer washes, cool rinse
Every wash takes a little toner with it. Wash less often, with a sulfate-free shampoo, and finish with a cool rinse for shine.
Every third day, a cool rinse. -
A mask every week
Lightened hair is porous, and porous hair lets toner out faster. A weekly protein or bond mask on the lengths keeps it holding color.
A mask on the ends, once a week. -
A toner at week five
A salon toner every four to six weeks resets platinum to icy without lifting anything. On dark hair the same visit is a cool gloss at your own level.
Toner only, no lightener this time.
Care only protects a color that was right to begin with. Next: the shades that were never going to be, photographed on an ordinary face on a dull afternoon.
Hair colors to avoid, and why
First, two mistakes that are easy to confuse and need opposite fixes. Then twelve shades, each photographed on the same ordinary woman on a gray street. Flat daylight is how most people will see your hair, and it is far less forgiving than a studio.
The two mistakes
It looks heavy
- How you can tell
- Your hair reads as one solid dark block around your face. Your skin looks paler than usual, not in a good way, and the color looks like a wig in photographs.
- Why
- A flat black or near-black with no reflect in it, often a box color chosen for coverage. Dark hair needs shine or a cold glint to look alive; without them it absorbs light and looks heavy.
- Fix
- Add light where the hair moves - not to the whole head. A blue or violet gloss for a cold sheen, and if you want more, a few sapphire, lavender or platinum pieces at the front. Lifting everything a few levels is the wrong instinct: it lands you in the brassy middle.
It went brassy
- How you can tell
- In daylight the hair has an orange or yellow cast it did not have in the salon mirror. Your skin looks sallow next to it, and your eyes look duller.
- Why
- A partial lift, or a toner that has washed out. Dark hair lifted to level 5, 6 or 7 sits in its orange stage, and the warmth underneath comes back up the moment the cool tone fades.
- Fix
- Take it back down. A cool demi-permanent color at or near your natural level is the quick, cheap repair. Asking for a little more lightener to get past the brass is the instinct to resist, unless you really mean to go all the way to platinum.
The twelve shades, on a real face
Your palette page lists eight shades to skip. They appear here with the same hexes, grouped as that page groups them. The last four are this page’s own additions: cool shades that still miss. One woman, one gray street, and nothing changing between frames but her hair.
Anything warm
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Golden blonde
warm
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Honey blonde
warm
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Copper red
warm
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Caramel
warm
Gold, honey, copper and caramel. Light or dark, each one puts yellow or orange right beside cold pink skin, and the skin answers by looking sallow.
Soft and muted
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Dirty blonde
clean
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Golden light brown
warm
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Warm chocolate
warm
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Warm red chestnut
warm
Softer and duller rather than brighter. Dirty blonde has too little clarity; the three browns add a warm, reddish haze that hides the natural flush of your cheeks.
Cool, and still wrong
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Ash light brown
clean
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Dusty mushroom
clean
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Dusty lavender
clean
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Platinum, gone yellow
warm
The group to study. Each of these is cool, and each still misses, because it is cool without being clear or has lost its toner.
What the tags mean
- warmWarm
- Gold, honey, copper, caramel, warm browns - and platinum once its toner has gone. For a cold palette the word needs no translating, and the makeup page uses it the same way.
- cleanToo muted
- Dusty, beige or chalky: dirty blonde, ash light brown, mushroom, washed-out lavender. Soft seasons use this tag the other way round, for color that is too vivid. A Cool Winter runs on clarity, so here it flags color that has too little of it.
Eight warm and four too muted - and no too far, the tag the makeup page uses for distance. Your palette runs from level 1 to level 10, so no shade here fails on lightness alone; every one fails on temperature or on clarity. The third group proves it. Ash light brown and mushroom are cool and too soft. Dusty lavender is the washed-out cousin of the lavender violet your palette names. Platinum gone yellow is your own platinum after ten weeks without toner, taken from the upkeep row. Everything that does work is gathered in the next block.
Your shades, and the numbers to say
Your eight shades - four deep, four icy or jewel-toned - each with the level to ask for, then the five tone digits you are likely to hear. Take a screenshot before the appointment.
The shades, with the level to ask for
- Blue-black L1 #14161C
- Dark ash espresso L2 #2C221C
- Cool aubergine L2 #4D1E2B
- Ash brunette L3 #4A3C31
- Platinum blonde L10 #EDE9E6
- Silver ash L8 #A3ADB8
- Lavender violet L7 #8B80B3
- Sapphire streaks Pieces #1A3E6D
The numbers
- Ash 3.1 #4A3C31
- Violet 3.2 #61303C
- Natural 3.0 #483D36
- Gold 3.3 #483E2B
- Copper 3.4 #5C3616
Yours: 3.1 (your ash brunette), 3.2 and a gold-free 3.0. Not yours: 3.3 and 3.4. The first number is your own natural level, or one below it. For the icy end the first number becomes a 10 or an 8, toned with violet, and the booking becomes a lightening service. Sapphire streaks have no level: they are a direct dye placed as pieces.
The sentence to say, word for word: “I am about a level 3 naturally. I would like to stay at a level 3 ash - a 3.1 - or go one step deeper, as a gloss or demi, glossy and cold, with no gold or copper in the formula.”
The full Cool Winter palette →
Questions people ask
What is the best hair color for a Cool Winter?
Is True Winter hair color the same as Cool Winter?
What hair colors should a Cool Winter avoid?
Should Cool Winter hair be silver-toned or golden?
Can a Cool Winter go platinum blonde?
What is the best hair color for a Cool Winter brunette?
Should a Cool Winter get highlights?
Can a Cool Winter have red hair?
How should a Cool Winter handle gray hair?
What should a Cool Winter ask for at the salon?
Why does my platinum turn yellow?
Can I dye my hair at home as a Cool Winter?
Where this came from
The sources behind the factual claims on this page: salon numbering, the pigments in hair, what lightener does, why one color cancels another, how dye fades in water and in sun, and how gray hair is read.
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International Colour Charts for Hairdressing (opens in a new tab)
Hair & Makeup Artist Handbook, 2023
The level-and-tone numbering in the salon section, and the worked example quoted there: at one depth, a .1 is a cool ash while a .3 and a .4 are warm gold and copper. That is the tone grid on this page. Brands do not all follow the convention, so say the word as well as the number.
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Diversity of human hair pigmentation as studied by chemical analysis of eumelanin and pheomelanin (opens in a new tab)
Ito & Wakamatsu, Journal of the European Academy of Dermatology and Venereology, 2011
Background for the blonde and keeping-it sections. Hair color is set by the balance of black-brown eumelanin and reddish-brown pheomelanin, and black and brown hair carry a trace but constant level of the reddish one. That this is the warmth a partly lifted dark head shows is colorists’ practice, not this study’s finding.
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Mechanistic insights into the bleaching of melanin by alkaline hydrogen peroxide (opens in a new tab)
Smith, Garrett, Naqvi et al., Free Radical Biology and Medicine, 2017
Behind the blonde section. Alkaline hydrogen peroxide, the chemistry of lightener, bleaches hair by breaking its melanin down. Taking a level 3 all the way to platinum means breaking down nearly all of it, which is why the page books it in stages.
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The Art of Color: the subjective experience and objective rationale of color (opens in a new tab)
Itten, Reinhold (Internet Archive), 1961
Behind the rule that toning works on color-wheel opposites: violet sits opposite yellow and blue opposite orange. That is why purple shampoo belongs to platinum and silver, and blue to dark ash turning red.
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Protection of oxidative hair color fading from shampoo washing by hydrophobically modified cationic polymers (opens in a new tab)
Zhou, Foltis, Moore & Rigoletto, Journal of Cosmetic Science, 2009
Behind the washing advice in the keeping-it section: oxidative dye leaves hair mainly by dissolving in water, so every wash takes a little with it.
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Hair color changes and protein damage caused by ultraviolet radiation (opens in a new tab)
Journal of Photochemistry and Photobiology B: Biology, 2004
Quoted in the keeping-it section. Lamp and sunlight changed the color of every hair type tested - mostly in lightness, but also along the red-green and yellow-blue axes, and the light hair most. The samples were undyed, so applying the result to toned platinum is our inference, and the page says so.
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Gray hair influences perceived age and social perceptions (opens in a new tab)
Nutt, Thorstenson & Yorzinski, Frontiers in Psychology, 2025
Quoted in the gray section. 120 participants rated the same faces in their own color and edited to gray: the gray versions read older and less attractive, men rated them less trustworthy, and status and aggression did not move. One study, digitally grayed photographs, and no toned or blended silver.
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Color Me Beautiful (opens in a new tab)
Jackson, Ballantine (Internet Archive), 1980
Background on the seasons. Color Me Beautiful (1980) brought four-season color analysis to a wide readership. The twelve-season split that names a Cool (True) Winter came later, but Winter as cold, clear and high in contrast starts here.
The numbering, the chemistry, the color theory, the fading and the gray-hair study are sourced. Which shades suit a Cool Winter, why the middle of the scale fails, which way a red has to lean, and how silver sits on fair and deep skin are our own analysis, drawn from the parent palette. Lightness, hue and saturation come from this site’s own swatches. Four statements are colorists’ practice rather than measured findings: that lightener lifts dark hair through red, orange and yellow on its way to pale; that a toner is the first thing to wash out; that a shadow root softens regrowth; and that platinum from a dark base is done in stages. We have not found studies that measure them, and say so rather than dress an opinion up as a citation.