“Of course I know full well what a “shade” is.”
You posted: “Violet is a shade of PURPLE”.
Perhaps you can look up the definition of shade (of color) and explain how you get violet starting with purple.
Since you claimed that I don't know what the word "shade" means ( which I do and you don't),why don't you look it up?Because IF I write how to do it, you'll just tell me that I'm wrong. So here's what to do: 1)first look up color wheel 2)then look up secondary colors 3) followed by tertiary colors, the latter being what violet is, and you'll know at least one method of how to do it. But truthfully, you had best look up TWO different color wheels, one using "warm" colors and one using "cool" colors. A third wheel, should you care for even more ways, would be a mixed warm and cool colors color wheel.