Black. Wait, it's not a color? Then white. Wait, that's not a color too? In that case, gray. Oh...not a color I see.. What about dark gray? Nup, I give up. :/
Most shades of green. Emerald, Lime, Sage, Mint. Green is lively, it reminds me of nature and plants. I especially like green contrasted with black and white. Fab.