Elements of Art: Value
Value is the lightness or darkness of a color, and it adds dimension in a piece. Value is also a concept in color, as mentioned above. Artists can create value in line drawings through different shading techniques which use different types of line. In painting, value in color is created by adding whites and blacks to a color to create different values and shades.
Shading techniques create value in drawings and add dimension and perspective. These techniques include hatching, cross hatching, stippling, scumbling, stippling, and blending.