Of the four main eye colors (brown, blue, green, and hazel), the rarest eye color is green. However, new classifications say another color is even rarer: gray. Brown is the most common worldwide ...

According to the World Atlas, about 90% of the global population has dark brown or black hair, and 70% to 80 % of people have brown eyes. It’s not exactly the rarest hair color and eye color ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Have you ever locked eyes with someone and wondered how rare their eye color is?