acxtuaallly… in automotive class paints there are a great many factors involved. In old skool candies, they are all dyes and everything turns to baby diaper brown when mixed. The opacity has a lot of impact on how colors will mix. Red can be very odd at times, especially the more they edge towards blue. There are a few dozen reds and blues in a full mixing system for automotive paints. There are many that will act very unintuitive when mixed. Like it may look red, but it actually has a lot of white, with concentrated yellow and has some small amount of a brown that ends up red… but this is a mixing base paint and not something mixed manually. I used to think of all of my mixing paints in this kind of heuristic breakdown of how they act when diluted or mixed with other colors. There are many maroons or magentas that mix reds and blues. Even white is almost always yellow or blue and occasionally red. Pure white is very very rare. There is even an ultra bright white that is even brighter than the base white tone using UV trickery and a small amount of blue-violet. Not that anyone should care