What color should I paint the walls of my living room?

My house is bungalow style, my kitchen has wood panel and blue walls with the archway painted yellow and the ceiling white. In the living room, the wall w/the fireplace has already been painted tuscan teal, as the accent wall. I am thinking a mocha color on all the walls but I don't want a whole bunch of different colors in the house that look bad??? any suggestions, please let me know. Thanks.