Before the appearance of the mutation, the authors state, all humans shared brown eyes, which is the natural color of melanin ...

and hair color. People with blue eyes typically produce less melanin overall. This reduced melanin production extends beyond the iris to include skin cells, where melanin serves as a natural ...

Discover how your eye color genetically determines pain sensitivity, why dark eyes handle pain better, and what this means ...

blue color wheel. While exceedingly rare, violet or purple eyes can occur due to a lack of melanin, or natural pigment, in the irises, usually due to albinism or a genetic mutation. Melanin is a ...

Blue-eyed folks may be rarer ... Green eyes are considered the rarest of the “natural” eye colors. Found in only two percent of the world’s population, green eyes are most commonly seen ...

Several genetic markers contribute to our final eye color shade. A baby born with blue eyes can have brown eyes by their 1st birthday.