| Term | Definition |
| primary colors | red, green, blue. came make all other colors |
| secondary colors | cyan, magenta, yellow. subtractive colors |
| bit depth | amount of color/tonal info in digital file. higher bit depth = greater the color/tonal quality |
| brightness | relative lightness/darkness of color. 0% = black. 100% white |
| color gamut | range of reproducible color |
| color harmony | adjacent colors on color wheel. best result with colors that are approximately equivalent in brightness and saturation |
| contrast | well-separated colors. opposite colors on color whel |
| complementary | exactally opposite colors on color wheel |
| grayscale | black and white. no color information |
| high key | add white to colors to get less saturation. tint. pastel-hued imaged |
| hue | name of color. all colors can be assigned a location and number (degree between 0 and 360) on standard color wheel |
| low key | add black (darker). shade |
| monochromatic | colors of a similar hue. ex- duotone, sepia-toned |
| saturation | purity/strength of color |