red/green/brown - mostly red and green.
correct, if you google Color-Blind American flag, I'm the red-green one...
Also your game is making use of chromatic glow (which could be intended.) You might want to provide an alternate color palette that dulls the colors or adjusts to greys for some users.
I would also recommend a short video of HOW to play the game and the intention. I played for a few minutes but I couldn't figure out where to take the parts..
Great start though....