How to find your undertone in daylight

What you are actually looking for

Undertone is the hue cast of skin. It is the yellow or gold, the pink or blue, the green-gold of olive, or a balance close enough to call neutral. Depth is a different fact. Depth is whether the skin is light, medium, or deep in lightness. A deep complexion can be cool. A light complexion can be warm. If a mirror selfie in a dim room has ever convinced you that dark means warm, or that fair means pink, the selfie sorted value and then invented a temperature. The drape has to be done on the hue, in daylight, at the jaw.

The practical reason to separate the two is the closet. A person with deep, cool coloring and a person with deep, warm coloring can share a dark coat and still need different shirts. The cool reading is at home in a crisp white shirt under charcoal. The warm reading is at home in cream under a coffee brown. Same depth of skin, different cloth at the collar. Light coloring splits the same way. Light and warm can wear peach and warm ivory. Light and cool can wear rose and a soft white that is not creamy. Treating fair skin as a single palette is how a closet fills with colors that are light and still wrong.

Season names on this site are a styling map. They are not a claim about biology, and they are not a forecast of temperament. Light Spring, True Summer, Dark Winter, and the rest are shorthand for a combination of undertone, depth, clarity, and contrast. You can wear the map without joining anything. You can also leave a color you love in the closet and simply move it away from your face. The test below is a way to see what the cloth does. It is not a membership exam.

Why the vein test and the wrist test fail

The vein test asks you to look at the inside of your wrist and decide whether the veins look blue or green. Indoor light decides a large part of that answer. A warm bulb pushes everything toward yellow, so green wins more often than it should. A cool LED, or the blue cast of a phone screen in a dark room, pushes the same wrist toward blue. Veins also have their own color. They sit under skin, and the skin is already the thing you are trying to measure, so you are looking at a tinted filter over a blue-green tube. Two people with the same undertone can disagree about the same wrist because one of them is standing under a kitchen spot and the other is standing in a hallway.

The jewelry test has a similar problem and a smaller surface. Holding a gold chain and a silver chain against the wrist asks a patch of skin that is not the face to referee a metal, often under the same poor light. The wrist is also a place people have tested so many times that they already prefer one result. Preference is allowed in a closet. It is a poor instrument. Gold can look agreeable on a wrist and still throw a yellow band under the chin that the face does not want. Silver can look clean on a wrist and still look gray next to warm skin at the jaw. If you are going to use metal, use it where the face can answer, and use daylight. A small hoop near the cheek is a better test than a bracelet you cannot see while you look in the mirror.

There is a third weak test that travels with these two. People are told that burning in the sun means a cool undertone, and that tanning means a warm one. Burning and tanning describe how melanin responds to ultraviolet light. They are not a measurement of the hue cast of resting skin. A person who burns can still have a yellow cast. A person who tans deeply can still have a cool cast. Use the burn history as a reason to wear sunscreen. Use cloth for clothes.

A daylight protocol you can repeat

Pick a window that gets real daylight. A window that only reflects a shaded brick wall is dimmer and greener than you think. Morning or midday is easier than the last half hour before sunset, which is yellow by nature. Stand so the light falls on your face. If the window is behind you, your face is in shadow, and a camera will brighten that shadow with a color you did not choose. Face the glass, or stand side-on with the lit cheek toward the cloth.

Clear the face. Take off foundation, tinted moisturizer, and a strong lip color. Those products are designed to change the reading. A beard can stay. A beard is a value mass, and it belongs to contrast more than to undertone. If you color your hair, note it, because the hair will influence what you think you see, but the skin test is still the skin. Tie hair back so a dyed section does not sit between your eye and the jaw.

Use two cloths at a time, held under the chin, close enough that you can see the skin of the cheek, the side of the nose, and the shadow under the eye. The chest is too low. A color at the sternum can be pleasant and still tell you nothing about the eye socket. Keep each pair up for at least half a minute. The first five seconds are when people decide based on which cloth they already own.

If you take photos, turn off portrait mode, filters, and automatic color enhancement. Use the same spot, the same time of day, and the same white balance if the camera lets you lock it. Take the pair of photos back to back. Comparing a Tuesday photo in a yellow room with a Saturday photo at a window is how people talk themselves into a season they do not wear well. The point of the photo is a record of the skin next to the cloth, not a flattering portrait.

Do the test twice, on different days, before you buy anything large. A single afternoon can be skewed by a workout flush, a new skincare active, a sunburn, or a room you thought was neutral. If the two days agree, you have a direction. If they do not, you may be neutral, olive, or simply inconsistent about the light. The next sections are how to tell which.

The four drapes

First pair: warm ivory against a soft white that is not cream. Ivory carries yellow. A cool soft white carries a little blue or gray and almost no yellow. Watch the skin beside the nose. If ivory makes the face look smoother and the shadow under the eye lighter, you are leaning warm. If ivory makes the face look more yellow or a little dull, and the soft white looks cleaner, you are leaning cool. If both are acceptable and the difference is small, write down that the pair was close, and keep going. A small difference is information. It often means neutral.

Second pair: peach against rose. Peach is a warm, light orange-pink. Rose is a cooler pink with blue in it. This pair is sharper than the whites, so it is useful when ivory and white were too polite to show anything. Peach that agrees with warm skin looks like it belongs to the cheek. Peach on cool skin can make the face look flushed or slightly orange. Rose on cool skin often looks like a natural extension of the lip. Rose on warm skin can look slightly separate from the face, or gray at the edge of the cheek. Hold them one at a time, then, if you can, where you can see both, so the eye has a comparison and not a memory.

Third pair: camel against cool taupe. Camel is a yellow-tan. Cool taupe is a gray-beige with the yellow pulled down. This is the pair that settles a lot of arguments about people who believe they can wear every beige, because almost nobody looks equally even in both. Camel that works will make golden or warm-olive skin look continuous with the cloth. Camel that fails will make the jaw look muddy. Taupe that works will quiet redness without draining the face. Taupe that fails will look like a gray film next to yellow skin. If you only buy one pair of trousers this year, buy them after this pair, not before.

Fourth pair: a small gold-colored metal and a small silver-colored metal, held near the cheek, not at the wrist. A hoop, a coin, or the handle of a spoon is enough. You are watching the reflection on the skin under the eye, not the shine of the metal itself. Gold that works adds a warm light that matches the cast already there. Gold that fails adds a yellow you can see as separate from the skin. Silver that works looks like a cool line that does not gray the cheek. Silver that fails looks blue-gray and a little hard. Metal is the last pair because it is easy to over-read. Cloth covers more of the visual field and is closer to what a collar actually does.

How to score what you see

You are asking whether the face looks more even. Even means the forehead, the cheek, and the area beside the nose seem to belong to one complexion, and the shadow under the eye does not get heavier. You are not asking which cloth you would choose for a dinner. Liking can be added later. A color you dislike can still be a correct diagnostic, and a color you love can still make the skin look slightly tired. Keep those two judgments in separate columns for the length of the test.

A simple tally is enough. Give the warm cloth a mark when it wins a pair, the cool cloth a mark when it wins, and a tie when you truly cannot see a difference after a full minute. Three or four warm marks is a warm undertone. Three or four cool marks is a cool undertone. A split, or a stack of ties, is neutral territory, and you should read the neutral guide before you force a winner. If the warm cloths win but peach looks too clean and pink, and the face seems slightly green next to rose, read the olive guide. Olive is a warm-family cast with pink suppressed, often with a green note. It is not a failure to pick a side.

Michel-Eugène Chevreul’s work on simultaneous contrast is the reason the test is visual. A surrounding color shifts the appearance of the color it surrounds. A cool blue cloth can make warm skin look more yellow. A warm orange cloth can make cool skin look more pink, or more gray, depending on the person. You are using that shift on purpose. When the shift makes the face look patchy, the cloth is a poor neighbor. When the shift makes the face look continuous, the cloth is a candidate for the collar. The nineteenth-century observation still holds at a bedroom window. You do not need a laboratory to see it. You need two cloths and a few honest minutes.

What the analyzer measures

Just Style Me reads skin in CIE Lab. L* is lightness, which is depth, not undertone. a* runs from green toward pink. b* runs from blue toward yellow. A higher b* means more yellow in the measured patch. A higher a* means more pink. The undertone call is a relationship between those axes, not a single number and not a vein. Olive is the pattern where yellow is present and pink is relatively quiet, often with a green cast in the color balance. Neutral is the pattern where the warm and cool signals are close, so the scores do not separate cleanly.

A camera is not a laboratory spectrophotometer. White balance, a window with a green tree outside, and a clipped highlight can all move a* and b*. That is why a photo is a start and the daylight drape is the editor. If you use the analyzer, do it in the same light you used for the cloth, with a clean face, and then hold the two winning cloths up again. If the label and the cloth disagree, believe the cloth at the jaw. The label is a summary of a patch of pixels. The cloth is the thing you will actually wear.

The numbers are still worth understanding, because they stop a common mix-up. Someone with a high L* and a high b* is light and yellow-leaning. Someone with a low L* and a lower b* relative to a* is deep and cooler. Those are both ordinary results. Nothing in the math requires deep skin to score as warm, and nothing requires light skin to score as cool. If a friend, a salesperson, or an old chart tells you otherwise, the chart is sorting people by a photograph’s brightness and guessing the rest.

Worked clothing, once you have a direction

Suppose the tally was warm. Ivory beat soft white, peach beat rose, camel beat taupe, and gold looked continuous at the cheek. A working uniform is a warm ivory shirt, a camel coat, and trousers in warm stone or light brown. Add one accent at the face. A coral scarf, clear but not neon, is enough for a light warm face. A rust scarf is enough for a deeper, more muted warm face. The coat stays camel rather than black, because black introduces a value jump you have not measured yet. Undertone did not tell you your contrast. It told you the hue of the large neutrals.

Suppose the tally was cool. Soft white beat ivory, rose beat peach, taupe beat camel, and silver looked cleaner than gold. A working uniform is a soft white or light gray shirt, a cool taupe coat, and a charcoal or ink trouser if your contrast can hold the dark. A rose scarf, or a dusty rose knit if your coloring is muted, sits at the neck. A crisp cool pink is a different garment from a dusty one. If your eyes and hair are very distinct from your skin, you may be able to use a clearer pink and a true white. If everything about your coloring blends, dusty rose and greige will sit more quietly than icy pink and stark white. That second question is contrast. The guide Contrast levels: low, medium, and high is the place to sort it after the hue is stable.

Suppose the pairs kept tying, or camel and taupe traded wins across the two mornings. Skip the beige that a mannequin calls universal. Buy one camel scarf and one cool taupe scarf, in similar weights, and wear each for a day with the same shirt. The day that makes your face look less tired is the neutral to repeat. Neutrals are the expensive part of a closet, so they are the part to delay until the drape is boringly consistent. An accent can be wrong for a season and still be cheap to replace. A wrong coat is a year of looking slightly off in every photograph.

Mistakes that produce the wrong season

Testing in the bathroom is the first expensive habit. Bathroom light is almost never daylight, and it is often a mix of a warm bulb and a mirror that reflects the bulb back into your face. People confirm a warm undertone in that room every winter and then look sallow at noon. If you cannot get to a window, wait. A delayed test costs less than a coat.

The second mistake is using only the clothes you already own. If every cloth in the house is black, white, and blue denim, you are not testing peach against rose. You are testing whether you like your current uniform. Borrow two scarves, or buy two inexpensive cotton squares. The squares are the instrument. They do not have to be garments you wear on the street.

The third mistake is deciding from a filtered photo of a public figure with a similar complexion and a season name in the caption. The label is a summary of hue, value, and chroma on that person, under that lighting, after makeup. It is not a body you can copy. Two deep cool complexions can share a season name and still need different lightness in a shirt, because depth still varies inside a season. Use your own jaw.

The fourth mistake is changing two things at once. If you dye your hair darker and buy a new palette in the same month, you will not know which change you are seeing. Hair is a large value mass around the face. Darkening it raises contrast. That can make a cool, clear palette suddenly look coherent, or it can make a soft palette look harsh, and neither result is a pure undertone finding. Test skin first. Change hair later, if you want to, as its own decision. The page Hair color and the seasons is about that second decision, after the drape.

The fifth mistake is treating a tan as a new identity. A tan changes depth and often adds a temporary warmth or a redness. Repeat the drape when the tan has settled back toward your usual color before you replace the neutrals. Keep the clothes you already know how to wear while you wait. A two-week tan is a poor reason to give away a taupe coat that was winning in March.

Shopping notes

Shop for the collar first. The shirt, the scarf, the neckline of a dress, and the lapel of a coat do more to the face than the shoe. If you are warm, put warm ivory, cream, camel, and warm stone ahead of optical white and cool gray in the pieces that sit near the jaw. If you are cool, put soft white or true white, taupe, rose, and cool gray ahead of camel and cream. If you are still unsure, buy the accent in both directions as scarves, and buy the coat only in the color that won twice.

Read garment names as hues, not as marketing. Nude is someone’s skin, not yours. Camel from one mill is golden, and camel from another is a gray tan. Hold the garment under your chin in the doorway of the shop if the shop has daylight, or walk it to the window before you pay. Overhead retail lighting is often warm, which makes camel look better than it will look on your walk home, and it makes cool taupe look deader than it is. If you cannot reach a window, photograph the garment at the jaw and look at the photo outside, in the light you trust.

Men and women use the same undertone distinctions. A beard does not create a separate system. A beard changes contrast, because it is a large dark or light mass on the lower face, and it can hide the jaw you were using as a test site. If a beard is full, hold the cloth beside the cheek, above the beard line, still in daylight. A navy suit on a warm undertone and a navy suit on a cool undertone are not different cuts by rule. They are often different navies. Warm coloring usually prefers a navy with a little green or brown in it. Cool coloring usually prefers a navy that stays blue. The same distinction applies to a dress, a coat, and a shirt. The system is the hue.

Edge cases worth a second morning

Makeup that adds pink, especially a cool pink blush and a cool lip, can make a warm or olive face look temporarily cool in the mirror. Test bare, then test again with the makeup you actually wear if you want to know how your public face behaves. Both results are useful. They answer different questions. The bare test tells you the skin. The made-up test tells you whether your current products are helping the collar or arguing with it. If you never wear makeup, one bare test is the whole record.

Glasses with a strong frame color act like a drape you wear all day. A warm tortoise frame is a camel-family object near the eye. A silver or black frame is a cool object. If you are choosing frames in the same month as you are finding your undertone, do the cloth test first. Frame shape is a separate question of proportion. Frame color is this question. A flattering shape in the losing metal will still put the losing hue next to the eye for eight hours.

Gray hair lowers the darkness of the frame around the face and often cools the overall picture. It does not, by itself, rewrite the skin. People sometimes retest after their hair goes silver, find that stark black now looks harder, and conclude that they have moved into a summer palette. What often changed is contrast. The skin drape can still come out warm, cool, olive, or neutral exactly as before. Adjust the value of the clothes. Keep the hue result unless the skin test itself moved.

Very deep skin and very light skin are sometimes poorly served by drapes chosen for a medium complexion. If ivory and camel are both much lighter than you, you can still see the hue effect, but you should also include a deeper pair so the test is not only about shock. Compare a chocolate brown with black. Compare cognac with a cool burgundy. Compare a deep terracotta with a deep rose. The question stays the same: which cloth makes the face look more even. The lightness of the test cloth should be close enough to your own value that you are comparing hue.

Screens lie in a specific way. A phone with a night-shift setting adds yellow. A monitor in a dark room becomes the light source, and its white point becomes the daylight you think you have. Do not make the final call from a video call. If a video call is all you have that week, treat it as a conversation, not a fitting. The window test is short. It is worth doing on a day you can stand in your own room for twenty minutes with four cloths.

What to do with a stable result

When two mornings agree, name the result in ordinary language. Warm, cool, olive, or neutral is enough. Then read one neighboring guide, not twelve. Warm and cool readers can go next to Warm and cool undertones, without the vein myth and then to the season that matches their depth and clarity. Olive and neutral have their own pages because they are where people spend the most money on the wrong beige. Contrast comes after hue, because a correct hue in a violent value jump can still look disjointed at the collar.

Keep the four test cloths in a drawer. They are more useful than a new quiz every time you doubt yourself under a restaurant lamp. Restaurants are yellow. Cars at night are yellow. Office fluorescents are a mixed opinion. Your window, your ivory, your soft white, your camel, and your taupe are the control. If a new purchase looks wrong at dinner and right at the window, believe the window.

You do not need to empty the closet to use the result. Move the losing hues away from the jaw. A camel dress that loses on a cool face can be worn with a rose scarf that covers the neckline, or it can stay for days when a coat covers it on the way in. A black turtleneck that swamps a light, low-contrast face can become a layer under a lighter shirt, so the black is not the frame. The drape is a way to place color. Once the placement is obvious, the next purchase gets quieter, which is the practical point of knowing your undertone at all.