Blue is one of the three primary colors and falls in the RGB color model.
What do the other letters in RGB stand for? Royal Blue, Gray, Blue?
RGB stands for red-green-blue. It includes all colors that can be made from red, green, and blue.
Oh wow, I was way off, haha. What's so good about blue? I prefer green, imo
RGB are the most common used in computer displays. Your monitor has every possible combination of RGB.
Oh wow, how many combinations is that?
I have no idea, but there is an abstract mathematical model describing the way colors can be represented as tuples of numbers.