In fact, only 2% of the world's population has this iris color. In comparison, approximately 70 to 80% of humans have brown eyes, 8 to 10% have blue eyes, 5% have hazel eyes, and 3% have gray eyes ...

hazel, green, blue, and gray eyes. Brown eyes are the most common in the world compared with blue and green. This may be the world's most prevalent eye color — approximately 79% of the world ...

which not only gives them their color but also provides natural UV protection. Hazel eyes are a mix of brown, gold, green, and sometimes even gray. Depending on the lighting, they can even shift ...