It works hand in hand with line and shape to enrich the viewing experience. Color has several functions. These include value, hue and saturation. Value -Value is the relative degree of lightness or darkness in the range from white to black and is created by the amount of light reflected from a surface. A dark red has a deeper value than a light red.
Light blue has a lighter value than dark blue.
Chiaroscuro is the method of gradually shifting from light to dark to create the illusion of a curved surface. It is the creation of the illusion of depth through the use of light and shade in art. Caravaggio used this in many of his works. Modeling is the effect of producing light and dark. It is the light reflected from three-dimensional surfaces.