what part of the eye is colored

The colored part of the eye is called the iris. It is a thin, round, highly pigmented circular membrane between the cornea and the lens. The iris divides the eye’s anterior chamber into an anterior and posterior chamber and has a center opening called the pupil. The iris controls the size of the pupil, which regulates the amount of light entering the eye. The color of the iris depends on the pattern and amount of melanin, a dark brown pigment that the iris contains. Genetics determine a person’s eye color, and the amount and quality of melanin in the front layers of the iris determine the eye color.