Color and texture
These are visual properties, with color encompassing three distinct concepts:
Hue is the characteristic which distinguishes red from yellow from blue. Chromacity is the purity of the hue—the extent to which it contains white or gray. Value describes how light or dark a color is. In addition, saturation refers to a color’s brightness or dullness. We are also concerned about how fixed and unchanging colors are: “fugitive” colors such as reds and blues soon fade when exposed to natural light—especially sunlight.
Texture can vary from rough brick or stone to smooth metals, glass, or plastic.