RGB values

RGB values describe a color as three numbers: how much red, green and blue light to mix. Each runs from 0 (none) to 255 (full), so rgb(255, 133, 77) is full red, some green and a little blue, a warm orange.

With 256 levels per channel, RGB can describe 256 × 256 × 256 = 16,777,216 colors.

The same RGB values can look slightly different on different screens, because displays vary. Pro tip: check important brand colors on more than one device.