Help! I've recently purchased my first home. I want to give the formal living room a library/gentleman's club type look, and I can't afford to put wood paneling or built-in bookcases on the walls at this point. What color paint would you choose to acheive this look?

The hardwood floors are an orange based midtone. The large bookcase taking up most of one wall is a very dark brown. The loveseat is more a mahogany leather. Right now I have a rug in there that is forest green.
The room gets plenty of natural light from the two windows on either side of the fireplace and the large picture window on on wall. Pictures attached.

I've thought of painting the fireplace and bookcase wall a deep brown (e.g. Sherwin-Williams Rugged Brown) with the remaining walls a lighter tone. Or the fireplace wall in forest green (e.g. Isle of Pines by Behr) with a brown tone on the other three.