Well, first of all The Color Purple falls under the broadest genre of fiction. The three primary genres are poetry, drama, and fiction.
Hair color is determined by two different forms of pigment: eumelanin (which is the largest influence) and phenomelanin. Eumelanin is a black pigment, and phenomelanin is a red or yellow pigment. Hair color is determined by three factors having to do with pigments: how much pigment is present, to what degree a eumelanin or phenomelanin is present and how close together the melanin (pigment) granules are. The more eumelanin a person has, the darker his hair will be.
What Do You Want Your Hair Color To Say About You. Studies have shown that people make major judgement calls based on the color of your hair. We're not ones to judge a book by its cover, but we also can't argue with science: Studies have shown that people make major judgement calls based on the color of your hair. One study published in the Scandinavian Journal of Psychology found that men find brunettes approachable, blondes needy, and redheads haughty.