I love brown sofas. Keep the walls lighter, anchor the space with a light-color textural rug, and limit other dark browns to an accent chair or a picture frame. Bring in midtones such as hot pink, red, and teal.
This living room promotes its friendly gray and blush tones with warm copper accents. Metallic paint, string, and fabric add perfect details. The shelves are fronted with copper foil electricians tape (Cool Crafts For Your Room)