| A | B |
|---|
| Additive colors | A color system in which, when the values of R, G, and B (red, green, and blue) are 0, the result is black; when the values are all 255, the result is white. |
| Background color | White by default, it is used to make gradient fills, and to fill in areas of an image that have been erased |
| Bitmap | A geometric arrangement of different color dots on a rectangular grid |
| Blend color | The color you apply with a paint or edit tool. |
| Blending mode | Controls how pixels are made either darker or lighter based on underlying colors |
| Brightness | The measurement of relative lightness or darkness of a color (measured as a percentage from 0% [black] to 100% [white]). |
| Channels | RGB images use three colors to reproduce colors on screen. |
| Color management system | Keeps colors looking consistent as they move between devices. |
| Color separation | Result of converting an RGB image into a CMYK image; the commercial printing process of separating colors for use with different inks |
| Duotone mode | Used to create the following grayscale images: duotones (using two colors), tritones (using three colors), and quadtones (using four colors). |
| Filters | Photoshop commands that can significantly alter an image's appearance. |
| Foreground color | Used to paint, fill, and stroke selections. The default color is black. |
| Gamut | The range of displayed colors in a color model |
