Brown is the most common eye color worldwide by a large majority. In contrast, green is one of the rarest eye colors worldwide. The color of the eyes depends on how much melanin the eyes contain.

"The eyes are the window to the soul," notes a timeless quote. And while your eyes also bring the world your way, the origins of eye color are fascinating and even mysterious. To help lay out the ...

What determines the shade of your peepers? Experts weigh in on the rarest eye color in the world—and the genetics behind it. It’s said that our eyes are the mirrors of our souls, so it makes sense ...