With a cool undertone, the skin has a pink hue. There is a lot less melanin present in the skin, which means that tanning hardly happens. Signs of the cold undertone are traces of redness, easy flushing and freckles.
Especially colours like silver and ice blue will look beautiful.
With a neutral undertone, it is not clear whether the skin has a cool or warm undertone.
With this undertone you are the lucky one: both warm and cool colors let you shine!
With a warm undertone, the skin has a yellow hue.
People with a warm undertone have a lot of melanin in their skin. Often these are also people with brown or blue/green eyes in combination with warm blond, chestnut brown or black hair.
Especially earthy or golden tones will look good on you.