Help! What color should I paint my walls?

I have chocolate brown and blue curtains. My couches are a mocha color. I have brown and blue accent pillows on my couch... choc. brown end tables and bookshelf, etc.. My mother in law gave me some place mats that had the same color blue along with a burnt orange and sage green in them. Anyway, I like those colors and they seem to look ok with the brown and blue curtains. Anyway, I was just wondering what color to do the walls. I don't want to paint them a tan/neutral color.. I want something chic and modern.. I just don't know what to do. Also, what do you think of throwing in some burnt orange accents around the room? What do you think that would look like the the brown and blue? I just want more color, just have no clue how to do it. Any ideas?