Colours are weird.
Does anybody else ever think about how what you perceive red to be may not be what everyone else perceives red to be, yet you both call it red and will NEVER be able to tell that there is a difference in your personal perception of the appropriate parts of the light spectrum?
Like what you see as "red" may look completely different to me, but we've both been taught to call that sensation "red".
I don't think I'm explaining this well. But my favourite colour is mind****.