Final answer:
A relatively dark value of a color, created by adding black, is called a shade. This affects the color's value, which is the degree of its lightness or darkness.
Step-by-step explanation:
The relatively dark value of a color, produced by adding black to it, is known as a shade. When discussing color attributes, adding white to a color results in a tint, while adding black results in a shade. Moreover, saturation refers to the intensity of color, where a fully saturated color has no black or white added and appears in its purest form. On the other hand, hue refers to the color itself or the variations of a color. The addition of black not only creates shades but also affects the value of the color, which is its relative lightness or darkness.
To give an example, consider how adding black to a bright red can create a dark burgundy shade, which has a lower value compared to the original red. This principle is essential in the arts, allowing artists to create depth, contrast, and interest in their paintings by utilizing various tints, shades, and saturation levels.