Some information about colors.
- R - red
- G - green
- B - blue
The RGB color model is a color model in which red, green and blue light are added together in various ways to reproduce different colors.
Hexadecimal format (a hex triplet): #RRGGBB.
- RR - hexadecimal red
- GG - hexadecimal green
- BB - hexadecimal blue
Shorthand hexadecimal form is #HHH, for example, #FFF = #FFFFFF, #F0E = #FF00EE (each letter twice).
HSL represents a cylindrical-coordinate representation of colors.
- H - hue is a degree on the color wheel 0° - 360°
- S - saturation 0% - 100%
- L - lightness 0% - 100%