# Warm or Cool Undertone: How to Tell

> Your undertone is the steady cast beneath the surface of your skin: golden or peachy if warm, pink or bluish if cool, and a close balance of the two if neutral. A tan does not change it. Home tests such as the vein test give a hint rather than an answer; the fairest check is a warm and a cool colour of equal depth held against your bare face in daylight.

Source: https://colour-sense.com/en/guides/warm-or-cool-undertone (ColourSense, Updated 2026-09-30)

## Undertone is not the same as skin tone

When people ask whether they are warm or cool, they are asking about undertone. It helps to separate it first from surface tone, which it is often mixed up with.

**Surface tone** is how light or deep your skin looks, together with whatever sits on it at the moment: a summer tan, a flush after a cold walk, foundation, bronzer. It changes with the weather and the month.

**Undertone** is the cast underneath. A warm undertone has a golden, peachy or ivory quality; a cool undertone has a pink, rosy or slightly bluish one. It stays put through the year, which is why it is the first thing a colour season is built on.

Depth and warmth are separate questions. "I'm very fair, so I must be cool" and "I tan easily, so I must be warm" are two of the most common mistakes. Porcelain skin with a peachy cast is warm, and often belongs with [Light Spring](https://colour-sense.com/en/color-types/spring/light-spring) rather than with the Summers. Deep skin with a cool, blue-red cast is cool, and belongs with the cool seasons, often with [Deep Winter](https://colour-sense.com/en/color-types/winter/deep-winter). The depth tells you how light or dark your colours should be, while the undertone tells you whether they should be warm or cool.

## What warm and cool look like

Undertone shows in more than skin. It runs through your hair and eyes too, which is often easier to see.

With a **warm undertone**, skin tends towards peach, ivory, golden beige or bronze. Hair has gold, copper, honey or chestnut in it, and catches the light with a warm shine. Eyes are often warm hazel, amber, golden brown or a clear green with golden flecks. Camel, olive, coral and warm gold make this skin look rested; icy pastels and blue-greys make it look grey.

With a **cool undertone**, skin tends towards pink, rose, porcelain or a blue-red deep brown. Hair is ash blonde, cool brown or blue-black, with a silvery rather than golden sheen. Eyes are often grey-blue, icy blue, cool grey or a very dark brown. Raspberry, blue and cool grey make this skin look clear; mustard, orange and camel can make it look yellowish and tired.

Most people show a mix of signals. What you are looking for is the balance, not a perfect match.

## The vein test, and why it misleads

**How it works:** look at the veins on the inside of your wrist in daylight. Green suggests warm, blue or purple suggests cool, and a mix suggests neutral.

**Why it misleads:** the colour of a vein as you see it is mostly an effect of light passing through the skin, so it says as much about how fair or deep your skin is as about its undertone. On deeper skin the veins can be hard to see at all. Warm indoor light turns blue veins greenish, and your inner wrist sees far less sun than your face does, so it may not match the skin you are dressing. It is a quick first hint, nothing more.

## The jewellery test, and why it misleads

**How it works:** hold a gold piece and a silver piece against your neck or jaw in turn. If gold makes your skin glow and silver makes it look grey, you lean warm. If silver brightens you and gold looks brassy or yellow, you lean cool.

**Why it misleads:** a metal's finish changes the result as much as its colour. Polished metal is bright and reflects whatever is around it, so the test quietly measures clarity too. A [Soft Summer](https://colour-sense.com/en/color-types/summer/soft-summer), whose colouring is muted, can find a mirror-bright silver chain harsh and conclude that silver is wrong, when a brushed silver would have looked right. Habit plays a part as well: most of us prefer the metal we have worn for years. For a fair comparison, use two pieces of the same size and finish. Our guide to [gold or silver](https://colour-sense.com/en/guides/gold-or-silver-jewelry) covers finishes, rose gold and mixed metals by season.

## White or cream, and why it misleads

**How it works:** hold pure white fabric under your bare face, then cream or ivory. If pure white looks crisp and cream looks dull or yellowish on you, you lean cool. If cream looks gentle and flattering while pure white looks stark, you lean warm.

**Why it misleads:** pure white is not only cool. It is also the clearest, highest-contrast neutral there is, so this test mixes up warmth with clarity. Soft colouring finds stark white too much whatever the undertone: a cool Soft Summer may prefer a soft off-white, and read the result as warm. Clear colouring can carry crisp white even when it is warm, which is why a [Bright Spring](https://colour-sense.com/en/color-types/spring/bright-spring) often looks better in a bright white than in a heavy cream. A Winter will pass this test as cool for the right reason; many other people will not.

## Neutral and olive undertones

If your tests disagree, or every comparison looks close, you may have a neutral undertone. That does not mean you fit no season. It usually means warmth is not the dominant quality in your colouring, and that something else, such as your depth or the softness of your features, is doing most of the work.

**Olive** is a separate puzzle. It is a green-grey or khaki cast that can sit over a warm or a cool undertone. Olive skin often confuses all three home tests: veins are hard to read, both metals look slightly off, and white and cream both look a little wrong. On our season pages olive appears in [Autumn](https://colour-sense.com/en/color-types/autumn), as golden olive, and in [Winter](https://colour-sense.com/en/color-types/winter), as one of the cool base tones. So "olive" on its own does not settle the question.

## A fairer comparison at home

The fairest home check changes only warmth and keeps everything else equal. Hold two colours of the same depth and the same clarity under your face in daylight, a bare face, with dyed hair covered:

- a coral and a raspberry pink;
- a camel and a cool grey-beige;
- a moss or olive green and a blue-green;
- a warm gold scarf and a silver-grey one.

Look at your skin, not the fabric. The colour that matches your undertone makes it look even; the one that does not makes it look sallow, grey or tired, and deepens shadows under the eyes. Take photos in the same spot and compare them side by side, since your eyes adjust to colour as you look. Our step-by-step guide to [finding your colour season at home](https://colour-sense.com/en/guides/find-your-color-season) sets this up in more detail and takes you on to depth and clarity.

## How undertone places you among the seasons

Undertone is the first split in the twelve-season system. **Warm** points to Spring or Autumn; **cool** points to Summer or Winter.

The clearer your undertone, the more likely you belong to a subtype named after it: [Warm Spring](https://colour-sense.com/en/color-types/spring/warm-spring) and [Warm Autumn](https://colour-sense.com/en/color-types/autumn/warm-autumn) are the warmest of the twelve, [Cool Summer](https://colour-sense.com/en/color-types/summer/cool-summer) and [Cool Winter](https://colour-sense.com/en/color-types/winter/cool-winter) the coolest.

A near-neutral undertone points the other way, towards the subtypes that sit on the border between a warm and a cool season. They come in pairs that share their dominant quality and differ mainly in warmth:

- [Light Spring](https://colour-sense.com/en/color-types/spring/light-spring) and [Light Summer](https://colour-sense.com/en/color-types/summer/light-summer), both led by lightness;
- [Bright Spring](https://colour-sense.com/en/color-types/spring/bright-spring) and [Bright Winter](https://colour-sense.com/en/color-types/winter/bright-winter), both led by clarity;
- [Soft Autumn](https://colour-sense.com/en/color-types/autumn/soft-autumn) and [Soft Summer](https://colour-sense.com/en/color-types/summer/soft-summer), both led by softness;
- [Deep Autumn](https://colour-sense.com/en/color-types/autumn/deep-autumn) and [Deep Winter](https://colour-sense.com/en/color-types/winter/deep-winter), both led by depth.

In these pairs a gentle lean decides, which is exactly where home tests are weakest. Our overview of [the twelve seasons](https://colour-sense.com/en/guides/12-season-color-analysis) shows how the pairs sit on the wheel.

If you would like a second opinion, the [free colour test](https://colour-sense.com/en/color-test) is a short quiz in your browser that estimates your season. The [personal colour analysis](https://colour-sense.com/en/color-analysis) goes further: from a few questions about your hair, eyes and skin and one to three photos taken in natural light, it determines your season and subtype, and your PDF report names the colours to wear and to avoid, along with metal tones, make-up and hair colours.

## Questions and answers

### How can I tell if my undertone is warm or cool?

Hold two colours of the same depth and clarity under your bare face in daylight, one warm and one cool, such as a coral and a raspberry pink. The one that makes your skin look even and rested matches your undertone; the other makes it look sallow or grey. The vein, jewellery and white-or-cream tests can support the answer but should not decide it alone.

### Does a tan change your undertone?

No. A tan deepens your surface tone and often adds a golden cast on top, which can make cool skin look warmer for a few weeks, but the undertone underneath stays the same. For that reason it is best to judge your undertone when your skin is at its palest, and without self-tan or bronzer.

### Is olive skin warm or cool?

It can be either. Olive is a green-grey or khaki cast that sits over a warm or a cool undertone, which is why it confuses every home test. On our season pages olive turns up in Autumn, as golden olive, and in Winter, as a cool base tone. Judge by colour comparisons in daylight rather than by the olive cast itself.

### What does it mean if my veins look both blue and green?

It usually means the vein test cannot read you, which is common. It can point to a neutral undertone, but vein colour also depends on the light, on how deep your skin is and on how visible your veins are at all. Treat it as a hint, and compare warm and cool colours against your face instead.

### What is the difference between skin tone and undertone?

Skin tone, or surface tone, is how light or deep your skin looks and what sits on it at the moment: a tan, a flush from the cold, make-up. Undertone is the cast beneath it, warm, cool or neutral, and it stays the same through the year. Fair skin can be warm and deep skin can be cool.