Why are people colorful?

The skin color of people depends on the coloring pigment – melanin. The proportion of this pigment in the skin is determined by genes, but also depends on the exposure to ultraviolet rays that the skin is exposed to. In addition, skin color is dependent on the blood vessels underneath. When they expand, as well as narrowing, the skin turns pale and red.

It is also worth noting that in humans, certain areas of the body also have different color intensities. For example, the lips are red, the skin on the fingers and ears are also reddish.