I always just assumed school buses were yellow because they're always referred to as yellow, but then my 3 year old child said "look at the orange bus" and as I

I always just assumed school buses were yellow because they're always referred to as yellow, but then my 3 year old child said "look at the orange bus" and as I looked, I realized that indeed the colour of a bus appears to be more orange than yellow. Now I can't un-see it.