To help explain, which colour can be seen the most altogether on Pokemon and the Colour that is seen the least please. Thanks to whoever answers! :P
I can't really give an exact answer, but from what I've seen, reds, blues, and greens and even white are seen a lot though usually white is a minor detail. You probably won't see blacks or grays often though. I hope this answered your question.
Here is a list of all the Colours a Pokemon can have and the number of Pokemons have said colour.
Well there are 9 different colour divisions according to bulbapedia and form what I can see the most common is Blue or Brown and the least is Pink or Black
Hope this helped!