How can I bring together my new living space with a dark burgundy leather sofa & love seat?

I currently have olive green/moss walls, two gl end tables, a tail table and an oak fireplace and wall to wall cream carpet in my living room. My window treatments are simple white wood blinds. I treated myself to new furniture but the room, which is a nice size, now looks a little too dark-I think I need to lighten it up. Any suggestions how can I bring this room together?