Can a person have green eyes?
Green eyes are the most rare eye color in the world. Only about 2 percent of people in the world have naturally green eyes. Green eyes are a genetic mutation that results in low levels of melanin, though more melanin than in blue eyes. What is the rarest eye color? Of those four, green is the rarest. It shows up in about 9% of Americans but only 2% of the world's population.