Undertone Test
Search for an undertone test and almost everything you find belongs to a cosmetics company, with a foundation shade waiting at the end of it. That is a perfectly reasonable thing for them to build, but it answers a different question from the one most people are asking. Undertone decides which colours sit well against your face — which greys, which reds, which whites, whether gold or silver reads more naturally on you. This test is built for the wardrobe version of that question. It asks seven things, takes about two minutes, and tells you which of the individual checks are unreliable for your skin rather than pretending all of them work equally for everyone.
Short answer: There are four undertones — warm, cool, neutral and olive. Warm skin leans golden or peach, cool leans pink or blue, neutral sits between them, and olive carries a green or grey cast that can sit over any of the other three.
Undertone Test Guide
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View Undertones Guide Below ↓
What is my undertone is a question about the colour sitting underneath your skin rather than the colour of the skin itself. It does not change when you tan, it does not change with the seasons, and it is entirely independent of how light or deep your complexion is. Three of the four categories are widely agreed on. The fourth, olive, is where most of the confusion in this subject lives, and it gets its own section below.
A golden, peach or yellow cast underneath the skin, at any depth of complexion.
Warm undertones read golden rather than pink. Gold jewellery tends to look settled against the skin while silver can look separate from it, cream usually sits better than optic white, and skin often takes sun as a golden tan rather than burning pink. Warm skin exists at every depth from very fair to very deep — the undertone is about the cast, not the level.
A pink, red or blue cast underneath the skin, at any depth of complexion.
Cool undertones read pink or blue rather than golden. Silver jewellery tends to look clearer against the skin, optic white usually sits better than cream, and skin more often flushes or burns than tans golden. Deep cool skin frequently reads as blue or plum-based rather than pink, which is one reason the standard descriptions built around fair skin cause so much confusion.
No dominant cast in either direction, or a balance of both.
Neutral undertones sit between warm and cool rather than carrying a clear lean towards either. Gold and silver both look fine, white and cream both work, and most of the standard tests come back ambiguous — which is itself the strongest signal. Neutral is more common than the tidiness of the warm-cool division suggests, and it is frequently mistaken for 'the tests are broken'.
A green or grey cast that can sit over a warm, cool or neutral base.
Olive is not a fourth point on the warm-to-cool line. It is a separate layer — a green or ashy quality that sits over whatever underlying temperature you have, which is why an olive complexion can be warm, cool or neutral underneath. Almost every standard undertone test fails on olive skin, and the section below explains why.
Key Principle:
Undertone is a cast, not a level. A fair complexion can be warm, cool, neutral or olive. A deep complexion can be warm, cool, neutral or olive. Skin tone changes when you tan; undertone never does.
Short answer:
The vein test is the most cited and the least reliable. The jewellery test and the white-versus-cream test are better, and both fail under artificial light. No single test is dependable on its own, which is why this one asks seven questions instead of one.
There is a Quora thread ranking for this subject in which someone explains that several makeup artists have told them they are cool and several others have told them they are warm. That is the normal experience, not an unusual one, and it happens because almost every guide presents four or five tests as equally valid when they are not. Some of them are genuinely informative. Some of them are folklore that survived because they are easy to write about.
The vein test is the worst offender and the most repeated. Looking at whether your wrist veins read blue or green sounds objective, but vein colour is a function of how light scatters through skin of a given depth, not of undertone. Deeper skin obscures veins almost entirely. Olive skin makes nearly everyone read green. Thin fair skin makes nearly everyone read blue. Under a warm bulb the whole thing collapses. If a guide leads with the vein test, it has not thought about who is reading it.
The tests that hold up are comparative — they ask you to judge one thing against another rather than to read an absolute. Gold against silver works because you are comparing two references under the same light. Optic white against cream works for the same reason. Watching what your skin does in sun over several exposures works because it is a repeated observation rather than a single glance. None of them is conclusive alone, but three or four of them agreeing is meaningful, which is the principle this test is built on.
Two conditions matter more than the questions themselves. Daylight, and no makeup. Answer under a warm indoor bulb and almost everyone reads warm; answer under a cool white LED and almost everyone reads cool. If you can only answer indoors, note that the result is provisional and try again by a window.
This test uses the first three heavily, the next two as tiebreakers, and does not use the last two at all.
Judge every check in daylight, beside a window.
Use the same mirror and the same light each time.
Three or more checks agreeing is the result. A single check is a hint, not an answer.
Short answer:
Olive is not a point between warm and cool. It is a green or grey cast that sits over an underlying temperature, so olive skin can be warm, cool or neutral beneath the olive. The question 'is olive warm or cool' has no single answer because olive is answering a different question.
Olive undertone is the most misunderstood category in this subject, and a subreddit dedicated to it currently outranks every cosmetics brand for the term — which tells you how poorly the mainstream guides have served it. The confusion comes from treating olive as a fourth option alongside warm, cool and neutral, as though you pick one of four. That is not how it works. Warm, cool and neutral describe the temperature of the cast under your skin. Olive describes a green or ashy quality layered over it. They are two different axes, and you can have both.
In practice that means a warm olive complexion reads golden-green, a cool olive reads grey-green or slightly ashy, and a neutral olive reads green without a clear lean either way. All three are olive. The standard tests struggle with all three, because the green cast interferes with exactly the comparison each test is trying to make — gold and silver both look slightly off, veins read green regardless of what is underneath, and foundations described as warm or cool both go orange or grey on the skin.
The most reliable sign of olive is negative rather than positive: if both gold and silver look faintly wrong, if foundations that match your depth still look off-colour, and if warm-labelled products go orange on you while cool-labelled ones go grey, you are almost certainly olive. Our test includes that pattern deliberately, because it is the check that actually identifies olive skin, and it is the one the vein-test guides leave out.
For clothes, the practical consequence is that olive complexions generally sit well with colours that have some depth or muting to them and struggle with anything very clear and cold. Once you know whether your olive leans warm, cool or neutral, the colour advice for that temperature applies — the olive layer narrows it rather than replacing it.
Olive is an independent dimension of green/grey hue, not simply a location between warm and cool.
Olive skin exists on the vertical axis, co-existing with cool, neutral, or warm temperatures.
Short answer:
If gold and silver both look fine, white and cream both work, and every test comes back ambiguous, that ambiguity is the result. Neutral undertone is not a failed test — it is the answer the tests are giving you.
People who come out neutral very often assume they have done something wrong. They retake the test, get the same unclear answers, and conclude the tests are broken. They are not. A neutral undertone means there is no dominant cast in either direction, so comparative tests will keep returning ties, and a tie returned consistently is a clear finding.
It is worth separating neutral from neutral-leaning. A true neutral sits genuinely in the middle and can wear both warm and cool colours with equal ease, which is a real advantage when shopping. A neutral-leaning-warm or neutral-leaning-cool complexion sits slightly off-centre — most tests tie, but one or two consistently favour a direction. Our test reports the lean when it finds one, because the lean is what determines whether you reach for ivory or optic white.
The common confusion here is between neutral and olive, and it is worth spelling out because they feel similar and are not. Neutral means no strong temperature. Olive means a green cast over whatever temperature you have. If your tests are ambiguous and colours simply work either way, that is neutral. If your tests are ambiguous and colours look slightly off in both directions, that is olive.
Neutral undertones have the widest workable palette of the four — both warm and cool versions of most colours sit acceptably. The trade-off is that nothing is dramatically transformative, which is why neutral complexions often benefit more from getting depth and contrast right than from chasing temperature.
Short answer:
Yes, deep skin has undertones, and all four occur across the full depth range. The vein test does not work because veins are not visible enough to read. Use the jewellery comparison, the fabric comparison, and how your skin behaves with sun.
There is a Quora question ranking in this subject asking whether very dark skin has an undertone at all. The fact that the question exists and ranks is the clearest possible indictment of how this topic is usually written. The answer is straightforwardly yes — undertone is the cast underneath the skin and it exists at every depth. What changes on deep skin is not whether there is an undertone but which methods can detect it.
The vein test is useless here, and most guides open with it. On deep complexions the veins are not visible clearly enough to read a colour from, so the test either returns nothing or returns whatever the person expected. The white paper test has a similar problem — the contrast is so large that the paper tells you about depth rather than cast.
The methods that do work are the same comparative ones that work best everywhere, with the reference points adjusted. Gold against silver remains the single most useful check, and on deep skin the difference is often more visible rather than less. Comparing a rich cream against a stark optic white beside the jaw works well. And deep skin frequently carries a red, blue or golden cast that is most readable in the palms and the area just under the jaw rather than on the forearm, which is where the standard instructions send everyone.
One further note worth making. Deep skin is more likely than average to be olive or neutral, and the warm-cool descriptions written for fair skin often assume all dark skin is warm. It is not. A deep cool complexion against royal blue or optic white is one of the most striking colour combinations in portraiture, and treating every deep skin tone as automatically golden does people a disservice.
Must vanish into skin seamlessly without demarcation.
Reflects and harmonises; does not match skin tone.
Short answer:
The undertone is the same; what you do with it is opposite. Foundation should match your undertone so it disappears. Clothing sits beside your skin rather than on it, so the aim is harmony and contrast rather than a match.
Nearly every undertone guide online is written by a cosmetics company, and the result is that the whole subject has been framed around foundation matching. That framing is not wrong, but it answers a narrow question. Foundation is applied to the skin and should become invisible, so a warm complexion needs a warm foundation and the test is simply whether the product vanishes at the jawline.
Clothing works differently because it never touches the skin's colour — it sits next to it. The reflected light from a garment near your face changes how your skin reads, which is why a colour can look good on a hanger and wrong at the collar. A warm complexion is not restricted to warm clothing; it responds well to colours that share its warmth and gets fought by colours that are aggressively cold and clear. That is a question of relationship, not of matching.
This is why undertone is the first step rather than the answer. Knowing your temperature narrows the field considerably — which whites, which greys, which reds, gold or silver at the collar. The full picture needs two more dimensions, depth and clarity, which is what the colour analysis quiz on this site adds. Undertone on its own tells you which half of the colour wheel to start in.
Short answer:
Skin tone is how light or deep your complexion is. Undertone is the colour cast sitting underneath it. They are entirely independent — fair skin can be warm or cool, and so can deep skin.
These two get used interchangeably and they describe completely different properties. Skin tone is the surface level, the thing that changes when you tan and the thing a foundation shade number is tracking. Undertone is the cast beneath, and it does not change with sun exposure, season or age. The practical consequence is that knowing someone is fair tells you nothing about whether they are warm or cool, and the two of you can share an undertone while needing foundation shades several steps apart.
How light or deep · Changes with sun · Determines your foundation shade number · Surface level
Warm, cool, neutral or olive · Stays constant · Determines which version of a shade · Beneath the surface
These example palettes show the kind of colours that typically work well with each undertone. Use them as a starting point rather than a rule — your personal palette can be wider than this, and the full picture needs depth and clarity as well as temperature.
A golden, peach or yellow cast underneath the skin, at any depth of complexion.
A pink, red or blue cast underneath the skin, at any depth of complexion.
No dominant cast in either direction, or a balance of both.
A green or grey cast that can sit over a warm, cool or neutral base.
Undertone has no standards body and no agreed test, and the guides that dominate the subject were written to sell foundation. Here is what this one does instead.
Seven questions, weighted rather than counted. The three comparative checks that hold up — gold against silver, optic white against cream, and how skin behaves with sun — carry the most weight. Two further questions on natural colouring act as tiebreakers. Two more exist specifically to identify olive, by looking for the pattern where both warm and cool references read slightly wrong. The vein test is not used at all, for the reasons set out above. A result is returned when three or more checks agree; where they do not, the test reports the ambiguity rather than forcing a category.
This approach filters out isolated anomalies, ensuring that a single misleading observation cannot override consistent chromatic evidence across multiple independent tests. By balancing comparative reflection, melanin UV response, and natural pigment indicators, the evaluation maintains rigorous accuracy without guesswork.
Because a photograph cannot carry undertone reliably. Camera white balance, screen calibration and ambient light all shift colour in precisely the dimension being measured, which is why the same person gets different answers from different photos on the same tool. Judging two reference objects against your own skin, in daylight, with your own eyes, removes every one of those variables. It also means nothing about you is uploaded anywhere.
Smartphone image processing pipelines apply aggressive computational adjustments — tone mapping, auto-exposure, HDR contrast balancing, and color temperature shifting — that distort delicate epidermal hues before any algorithm can evaluate them.
Four situations. Answering under artificial light, which pushes almost everyone warm and is the single largest source of wrong results. A strong recent tan, which temporarily shifts the surface and obscures the cast beneath. Olive complexions, which the test attempts to identify but where a professional colour analysis with physical drapes will always be more certain. And genuinely neutral colouring, where the honest output is an ambiguity rather than a category — we report the lean when there is one and say plainly when there is not.
In complex borderline scenarios where warm and cool indicators sit closely balanced, a professional consultation using physical fabric swatches under controlled daylight remains the definitive gold standard.
For a plain step-by-step guide with no product attached, wikiHow's undertone test walkthrough is one of the few widely-read explanations not written by a cosmetics brand. For a thoughtful piece on how these descriptions translate across complexions they were not written for, Northeastern University's Asian American Center published a useful essay on finding your skin undertone.
What Is My Undertone? The Four Categories
Warm
Warm
Cool
Cool
Neutral
Neutral
Olive
Olive
How to Find Your Undertone: Which Tests Actually Work
TEST
HOW RELIABLE
FAILS WHEN
Gold vs silver jewellery
Good
Under artificial light, or with a strong tan
White vs cream fabric
Good
Wearing makeup, or under warm bulbs
How your skin reacts to sun
Good
Rarely exposed, or using sunscreen heavily
Which colours you get complimented in
Moderate
Compliments follow fashion, not undertone
Eye and natural hair colour
Moderate
Dyed hair, or high-contrast colouring
The wrist vein test
Poor
Deep skin, olive skin, any artificial light
The white paper test
Poor
Screen glare, and no depth reference
Quick Guide
Olive Undertone: Warm, Cool, or Something Else Entirely
The Two-Axis Undertone Model
Neutral Undertone: When the Tests Refuse to Agree
Neutral is not a consolation prize
How to Find Your Undertone on Deep Skin
Undertone for Clothes Is Not Undertone for Foundation
Skin Tone vs Undertone: What the Difference Actually Is
Skin tone
Undertone
Example Palettes for Each Undertone
Warm Undertone Palette
Cool Undertone Palette
Neutral Undertone Palette
Olive Undertone Palette
How This Test Works
What this undertone test is built on
Why we do not ask for a photo
Where this test is least reliable
Undertone Test FAQ
- What is my undertone?
- Your undertone is the colour cast sitting beneath your skin: warm (golden or peach), cool (pink or blue), neutral (no dominant cast) or olive (a green or grey layer over any of the other three). It does not change with tanning, season or age.
- Is the vein test accurate?
- Not reliably. Vein colour depends on how light scatters through skin of a given depth, not on undertone. It fails on deep skin where veins are not clearly visible, on olive skin where nearly everyone reads green, and under any artificial light. This test does not use it.
- Is olive undertone warm or cool?
- Either, or neither. Olive is a green or grey cast layered over an underlying temperature, so olive skin can be warm, cool or neutral beneath it. The question has no single answer because olive and temperature are two separate things.
- What if all the tests give me different answers?
- That usually means one of two things: you are neutral, and the ties are the result, or you are olive, and the standard references are reading slightly wrong in both directions. The difference is whether colours simply work either way, or look faintly off either way.
- Does deep skin have an undertone?
- Yes, and all four occur across the full depth range. What changes is which tests can detect it. The vein test does not work; the jewellery and fabric comparisons do, and the cast is often most readable in the palms and under the jaw.
- What is the difference between skin tone and undertone?
- Skin tone is how light or deep your complexion is and it changes with sun. Undertone is the colour cast beneath it and stays constant. They are independent — fair skin can be warm or cool, and so can deep skin.
- Can my undertone change?
- Not really. Tanning changes your skin tone, not the cast beneath it, though a strong tan can make the cast harder to read for a few weeks. What genuinely changes how you read overall is hair colour, which is part of why the full colour analysis asks about more than skin.
- Is undertone the same as a colour season?
- No. Undertone is one of three dimensions a colour season uses — the other two are depth and clarity. Two people can share an undertone and have completely different seasons, which is why the colour analysis quiz asks more than this test does.