I think Kelly Moore's "FIG COOKIE" would look great on those walls with a nice chocolate glazed metallic accent wall behind the TV. Like Modern Masters Metallic Paint Collection Dark brown. The photo attached is my living room. I went with the Fig cookie wall color and I love it! Warms things up. Even though your space is small, I still think the warm tones will make is cozy and richer looking. The other picture is my fireplace that my BF built. We used the Modern Masters Metallic paint on that. Dark brown. I really like it! Good luck!

Soft neutral light taupe/gray walls and a textured neutral rug... [houzz=][houzz=]

I like the Fig Cookie Natalie suggested, but I think I would go just a little bit darker, and paint the modings an off-white. This will give your room a modern, contemporary look.

After you mount your tv to the wall you will need a taller table underneath for balance. This parsons table (ok, maybe not this green!) with the cubes below it will work and also give you more seating. [houzz=]

I'd love to see this entire room---any additional photos?

Thanks for the comments have 3 weeks to do the work before I put up my tree