Hype
Smash Lord
I think a numbered Version would be a good way to solve the color blind issue. either a second chart or put the number right on top of the color.Tenki if you are color blind with green and yellow not matter what shade they are you'll be boned.
He can always create a black and white version.
3 for large disadvantage
4 for slight disadvantage
5 for neutral
6 for slight advantage
7 for large advantage