The RGB color space is an additive color space that reproduces color perceptions by additively mixing the primary colors red, green, and blue.
The code rgb(255,255,255) consists of three values:
255 for red (the maximum), 255 for green (the maximum), 255 for blue (the maximum).
In the RGB color system, the brightness of each color is represented by a value from 0 to 255. When all three colors are set to the maximum
(255), they completely overlap to produce white.