Ok...I’m about to complicate one of the simplest questions ever.
As a single colour on its own, I like blue.
However when it comes to putting 2 colours together, I like black/ red for some reason. Most of my race cars were black and red, my goalie gear is black and red, my car is red but the tires are black so that works.
Oh and before anyone says anything, yes I say colour, not color