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

On the spectrum violet after blue.

Mixed red and blue is magenta.

[Magenta is an illusion](https://www.youtube.com/watch?v=DRuPF6JtWdw)