Light skin is a human skin color, which has little eumelanin pigmentation and which has been adapted to environments of low UV radiation.[1][2][3] Light skin is most commonly found amongst the native populations of Europe and Northeast Asia as measured through skin reflectance.[4] People with light skin pigmentation are often referred to as "white"[5][6] or "fair", although these usages can be ambiguous in some countries where they are used to refer specifically to certain ethnic groups or populations.[7]