Eye color is determined by multiple variations of genes that produce and distribute melanin, pheomelanin, and eumelanin. The main genes influencing eye color are called OCA2 and HERC2.

Eye color refers to the color of your iris, which is the colored part of your eye that surrounds the pupil. Your pupil is the small black opening in the center, per the Cleveland Clinic.

Genetics add another layer to the process, determining how much melanin an individual’s iris will produce. But, unlike simple inheritance patterns, eye color isn’t determined by a single gene.

Eye color genetics not so simple, study finds Date: March 11, 2021 Source: King's College London Summary: Researchers have identified 50 new genes for eye color in a study involving the genetic ...

Eye color is determined by genetics, of course, but the genes associated with eye color are directly connected to the production, use and storage of a pigment called melanin.

Because brown eyes are so prevalent, the most common eye color change in newborns is blue to brown, Negrin says. Though it's important to note that not all newborns' eyes change color.

Genetics add another layer to the process, determining how much melanin an individual’s iris will produce. But, unlike simple inheritance patterns, eye color isn’t determined by a single gene.