How come red & purple are on opposite, far ends of the electromagnetic spectrum, but when mixing colors together in kindergarten, purple is halfway between red & blue?

Question

Shouldn’t common sense dictate that either both be one, or both be the other?

In: 1934

Answer 1

Google ‘additive and subtractive color.’

Color/light works differently in different scenarios. Like a piece of paper is white until you ‘add’ color to it, a computer screen is black until you ‘subtract’ color from it.