Eye color can be passed down from one generation to another. blue eyes are a type of eye color known as what?

Eye color depends upon the amount of melanin pigment in the eye.

Explanation:

Melanin is a brown pigment that is responsible of eye color in the iris. The genes are located next to the OCA2 gene. When the amount of melanin is in less amount in the iris, it causes change in eye color that may be grey, hazel or blue. But when the quantity of melanin is very least, it causes blue color in the iris. Blue color is also caused by genetic mutation in an individual.