Red can be a very important color in a room if used correctly. It can also be overpowering, especially if the color is off from the rest of the pieces in the room that need to play off of it. I like using red as an accent rather than having it boldly thrown in your face. Bounce it around the room in various small pieces to balance the space.—Think pillows, Drapery panels, lamp bases, colors in your artwork or area rugs, a mirror frame or single piece of furniture such as a chest, cocktail table, or chair.
If bold is what you seek, accent the red walls with black painted trim and various accessories throughout the room. This will give your eye that negative space it needs and is a very dramatic effect that can look very sexy or moody in a space—especially great in powder rooms or home libraries/offices; imagine all that black enameled cabinetry with a high gloss finish against deep red walls! Yum!
Above are images I collected from magazines over the years. Just a few examples of how you can work red into your homes interior.