As an artist I know of 3. Blue,red and yellow. I’ve often heard the the debate about if white and black are colors. I win every time. Pop Eyes have to have a white wispy ribbon. A Vitro Blackies. White Slags. I can’t remember which thread it was but there was a reference to a 4th primary color. If anyone can remember that thread I’m curious what the 4th one is. 🔥