The colored part of the eye is composed of two parts: the IRIS and the uvea. The IRIS is the colored ring of tissue that surrounds the pupil and controls the amount of light entering the eye. The uvea is the middle layer of the eye, which includes the choroid, ciliary body, and IRIS. Together, these two parts form the colored part of the eye, which helps to protect the eye from bright light and also helps to give the eye its color.