Hello everyone.
This looks like an interesting setup so far. I actually think the theory of this being tied to Pokemon has some merit - mainly b/c the order of the colors in the original post are Red, Blue, Green and Yellow which closely resembles the order Gen I pokemon games were released and the order they're traditionally talked about in (Red & Blue were released first in North America, followed by Yellow, Red & Green were released first followed by Yellow in Japan). I'm really just throwing out theories here though.
The idea of numbers being tied to roles/abilities though I think is very possible. Being familiar with Zodiac mafia, I wouldn't rule out the idea of some powers that can/can't be used unless a hand on the clock is pointing at you.