Click here to open pres0.ppz fullscreen. There are three physical properties that can be used to describe any color. These are hue, value, and intensity. Hue is the color name given to the each set of wavelengths in visible light. Value distinguishes between the quantity of light a color reflects, that is, the lightness or darkness of a color.
Intensity is the quality of light in a color, or the brightness or dullness of a color.