What color range does pheomelanin cover?

Pheomelanin is a type of melanin that is responsible for the lighter shades of hair and skin pigmentation, specifically in the red to yellow range. This pigment is most commonly associated with individuals who have red or blonde hair, and it contributes to variations in skin tones that have warm undertones. In contrast, eumelanin, another type of melanin, covers the black to brown range. The other color options, such as blue to green, and white to gray, do not relate to the color spectrum influenced by pheomelanin. By understanding that pheomelanin specifically contributes to colors typically found in red and blonde hair, it becomes clear why this answer is the correct choice.