* Hair and Skin: The primary pigment responsible for color is melanin. It comes in two forms:
* Eumelanin: Gives brown and black color.
* Pheomelanin: Gives red and yellow color.
* Absence of melanin: Results in albinism, where hair, skin, and eyes lack pigment.
* Eyes: Eye color is determined by the amount and distribution of melanin in the iris.
* Brown eyes: Have the highest concentration of melanin.
* Blue eyes: Have low melanin levels, and the color comes from the way light scatters in the iris.
* Green eyes: Have a mix of melanin and a gene that affects the scattering of light.
* Hazel eyes: Can have a mix of brown, green, and even yellow hues, depending on the amount of melanin and light scattering.
In essence, color is a result of the presence and type of pigments. The absence of pigments results in a lack of color.