Blue hair does not naturally occur in human hair pigmentation, although the hair of some animals (such as dog coats) is described as blue. Some people (typically of East Asian descent) are born with black hair that is so dark that it appears to have a metallic blue luster.
Blue hair does not naturally occur in human hair pigmentation, although the hair of some animals (such as dog coats) is described as blue. Some people (typically of East Asian descent) are born with black hair that is so dark that it appears to have a metallic blue luster.
Source: Wikipedia "Blue hair" · CC BY-SA 4.0
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