Help me!!!!!

I'm not sure I mentioned this, but John and I are moving! We are wicked psyched about it because the place is wonderful. We are going to have all the things that our current place DOESN'T have. Things like a dishwasher, microwave, garbage disposal, laundry ROOM (I'm excited about that, not only a full size washer and dryer, but in a laundry room), nice big tub for nice long baths, linen closet, patio ANDDDDD a WALK IN CLOSET (!!!!!!!!!!!!!!!!!). Here's a very very exciting thing about it all, we can paint the walls. However, you do need to paint them all back to white before you move, soooooo we're not going to go paint happy. I just cringe at the idea of trying to move and having to paint tons of walls back to white. So here's my thought.. I want to paint an accent wall in the living room, but I'm horrrrible at trying to choose a color. My couches are the only thing to consider right now since we're getting a new coffee table and entertainment center. The color of the couches are a dark red/brown, like a mahogany. So what color should I go with? I want it to be idiot proof, and if ya wanna come paint... let me know! haha.