Black frame glasses are cool color eyeglasses.

[glasses lens]

The colors of eyeglasses frames can be mainly divided into two types: warm color and cool color. Black frame glasses fall into the latter kind. There are some basic principles while choosing eyeglasses frames. The frame size should contrast with the face shape. The frame size should go with the face size. Nevertheless, the frame color is more complex than size and shape. The frame color also should coincide with the eye color, the skin color as well as the hair color. So, selecting black frames is a correct choice for gentlemen at leisure and working time .