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

For about $4,500, you can permanently change your eye color to a hunter green like Rihanna’s, or a clear blue like Vanessa L. Williams.

Rihanna has worn her hair in a variety of colors over the years, but her copper-brown hair is particularly flattering for her green eyes. Getty | Steve Granitz Emma Stone With Copper Hair ...