What Percentage of the Population Has Brown Eyes?

Eye color depends on the amount of melanin in the eye and how the color is distributed throughout the iris. The lighter one's eye color, the less melanin is present. Eye color percentages depend on the populations that are being studied. Asian and African populations are more likely to have brown eyes compared to European populations. The genetics of eye color is complex as well. Eye color cannot be determined based on the eye color of relatives. A person born to two blue-eyed parents may have brown eyes.