The twins differed in complexion and color of the eyes and hair.

The color of the eyes is a very dark brown or black.

Certain types of contact lenses are worn to change the color of the eyes.

Certain types of contact lenses are designed to change the color of the eyes.

The general resemblance was striking except in the color of the eyes and hair.

The color of the eyes is still more important.

He scrutinized every contour, the color of the eyes, the low, broad brow, the curve of the chin.

The next classification was that by the color of the eyes, as black, brown, hazel, gray, and blue.

The genes determine the physical makeup, the color of the eyes and hair, skin color, general build, et cetera.

He was informed that he could tell who the father was by the similarity and the color of the eyes.

The color of the eyes was different, of course, but I recognized the... not expression, exactly...

Change your hair, you change your face... Certain types of contact lenses are designed to alter the color of the eyes.

For a moment there was a brief tableau, in which each took the other's measure and noted the color of the eyes.

A baby is born with her or his glands practically as fixed for her or him as the color of the eyes.

One segment of paired letters is the gene for sex, another for the color of the eyes, yet another for a particular inherited disease.

The fifteen minutes' sittings now in vogue threw upon the plate the color of the eyes, hair, and the flesh tones of the sitter.