I've been aware for a couple of years now that there are only really 11 colours. In my experience, this feels like a boy/girl distinction.
Let me explain: most colours that girls talk about are in fact just different names for the same thing (Death Cab for Cutie reference intended). For example: 'teal'. What's that if it's not a shade of green?
I will reveal what these colours are shortly, but before that, let me tell you why we have to stop somewhere—why we shouldn't go the whole hog and pare it down to just three, red, green and blue. Although you can describe most colours humans can see with just an RGB value, everyday experience necessitates a wider vocabulary, particularly in the surprisingly different subjective appearance of yellow from its red and green constituent primaries.
Starting with the rainbow then, we see that there is