Any good decorators who can help me pick a paint color for my living room?

I am inheriting a sofa and recliner, and misc. items. The sofa is beige, the recliner is a burgundy color. I have one wall to put the sofa on and I am wondering what effect painting that one wall a darker color than the rest of the room would be. I am planning on going with some neutral colors. I have hard wood floors, and a a large entertainment center of natural wood. It's a medium wood, not light, not dark. I have a fireplace that is currently painted white. It is brick though, with a painted wood mantle. The opening to the fireplace has a black and gl front. The hearth is black slate. I love black and want to get some tables with wood and black. But the color selection for the walls are driving me crazy. I thought of a mauve, but everything looks so pink. So I am looking at beige's and browns, but think a darker color behind the couch would help the couch not to get lost in the wall. I hope someone has some advice, as I am one of those that is afraid to use color for fear of using it wrong