Tahukah Anda 7#?????

Iris color: Grey

Iris color: Turquoise 

       There are only two pigments that give color to the iris of the eyes which are yellow and brown. Lack of pigmentation allows scattering of light and produces the blue color. 

Eye color tutorial-edited in computer

     With these combination the multitude of human eyes colors from dark brown, brown, hazel, green, and blue are produces.

Color saturation of the iris