A color model is a group of colors identified in a way that computers can understand.

In the RGB color model, three primary colors of light (red, green, and yellow) are mixed at different intensities to create a range of other colors and display them on a computer screen.

The CMYK color model produces colors by mixing color pigments.

Saturation refers to the intensity of a hue.

Files that use RGB color for files are normally smaller files than CMYK and load onto screens faster.