Yes. Everyone has an undertone and for us we use this a lot to guide us in determining which tones can project you or dull you. You can be warm undertone, cool or neutral. And when you have a clear understanding of this, you’re better able to decide which hair colors will suit you.
For example, if you have warm undertones but however you love to join the new “blonde craze”; you must have your professional salon or wigmakers check your undertone in day light to ensure you get the right shade of blonde which will not wash you out and make you look dull but instead find you shades that can project your skin beautifully and make glow.