the relative degree of lightness or darkness of a particular color. "the artist has used adjacent color values as the landscape recedes"
Cleaner Graphics
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Color Wheel
The Primary Colors : Red,Yellow, and Blue Secondary Colors : Green, Orange, and Purple/Violet
Printers use Cyan, Magenta and Yellow to come up with a much broader range of color.
And Computers use Red Green and Blue (RGB Value) Which i thought was cool