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.
Your hair is now ready to take on color, and will often take color much more quickly and deeply than if you hadn't bleached your hair. You might choose to dye your hair a natural color, such as shades of brown, black, red or blond. You might also choose a color like cherry red, blue, purple, pink, and so on. For more natural color effects, stay within 1-3 shades within your own natural color. Consider the base color of your hair after bleaching and the base color of the dye you are going to use. These might conflict and give you the wrong color. If your bleached hair is yellowish, and your dye has a blue base color, you might end up with greenish hair.