[header] How to choose what color to wear [title] Check the color of your veins to determine your skin tone. [step] Take a look at the color of the most prominent veins in your wrist. If your veins look purple or blue, you have cool skin. 
If they look greenish, you have warm skin. [substeps] If you can't determine the color of your veins, or if blue and green are both represented, you probably have a neutral skin tone.