Warm vs. Cool Undertones: How to Tell the Difference

Warm undertones have golden, peach, or yellow underlying skin tones — gold jewelry flatters them and they tan easily without burning. Cool undertones have pink, red, or blue underlying tones — silver jewelry flatters and they burn before tanning. Neutral undertones combine both. The fastest self-test: look at your wrist veins (green = warm, blue/purple = cool, mix = neutral). Your undertone is one of three inputs to your Korean color season — combined with depth and contrast.

Why Undertone Matters

Your undertone is the foundation of your entire color season. It determines whether you fall into the warm camp (Spring and Autumn) or the cool camp (Summer and Winter). Get this wrong, and every other color decision cascades from that mistake.

Undertone is not the same as skin tone. People of any ethnicity can have warm, cool, or neutral undertones — it's about the color beneath the surface, not the surface itself.

The Classic Tests

The Vein Test

Look at the veins on the inside of your wrist in natural light. Blue-purple veins suggest cool undertones. Green veins suggest warm. If you see both, you're likely neutral.

The Jewelry Test

Does silver or gold look better against your skin? Silver flatters cool undertones, gold flatters warm. If both look fine, you're neutral.

Find your color season — free analysis

What Actually Works Best

The most reliable method is draping — holding pure white vs. cream fabric near your face. If pure white brightens your complexion, you're cool. If cream is more flattering, you're warm.

AI analysis evaluates undertone by analyzing the actual color data in your skin, hair, and eyes — removing the subjectivity that makes self-assessment difficult.

Neutral Undertones

About 20% of people have truly neutral undertones, which means they can pull from both warm and cool palettes. In the 12-season system, these people often land in 'bridge' seasons like Soft Summer or Soft Autumn.