Did you know some people have red eyes? How about violet? We spoke to an optometrist to learn how rare some eye colors are ...

Unlike people born with brown eyes, if you are born with a lack of melanin in your iris, it causes light to split into a spectrum, allowing your eyes to be green, grey, hazel, blue, or even purple.

People with heterochromia—or different-colored eyes—have a striking and unique appearance. Here's what causes it and just how rare it is.

Although some people have blue eyes, and many babies are born with particularly deep blue irises, no one actually has blue pigment in their irises. They’re just a trick of the light.

Reach for eye makeup colors like red-brown, pink, wine, maroon, plum or purple. "The contrast of the red and violet tones with the green (and yellow) in the iris will make the green stand out ...