Here are some words and concepts that will help you understand discussions on color.
Primary Colors (for Light)
Red, Green ,Blue
Primary Colors (for Paint)
Cyan, Magenta, Yellow, Key (Black)
The degree of purity of a hue
The brightness or dullness of a hue
A measure of the amount of light reflected (referred to as V in HSV)
Everybody has a personal theory of color. Everybody should - because color sense is highly personal.
But then, there are those who make universal truths about color instead of presenting it as their own color opinion - that will change next week.