Medically reviewed by Johnstone M. Kim, MD Of the four main eye colors (brown, blue, green, and hazel), the rarest eye color ...

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In humans, phenotypically, eye color falls into one of these basic categories -brown, blue or green. Brown eyes are the most common (due to their dominant nature), followed by blue and then green.

Green light is in the middle. Our eyes only detect three colours: red, green and blue. By combining these we can perceive many different colours Our eyes only detect three colours: red ...