Play up the primary colors red, blue and yellow. With a wall color in a pale shade of yellow for a sunny feel, add accessories in blue such as a grouping of vases. Toss blue or yellow pillows on a red sofa and add a complementary rug with stripes or geometric designs within the primary palette. By keeping the items minimal, the simple colors will stand out but not overwhelm the senses.
Using red sofas as the focal point in your living room, fill the rest of the space with items in black and white such as black shelves and chairs with white upholstery. Incorporate simple lines and interesting curves in the choices of accessories; lamps, vases and abstract sculptures in black or white add to the understated elegance of the room. Add two or three framed prints from Hokusai's "Thirty-Six Views of Mt. Fuji" series for a Asian-inspired look.
Red sofas surrounded by dark woods, and rich fabrics transform a living room into an Old World getaway. Decorate with upholstered armchairs in fabrics featuring small notes of red and luxurious patterns. Standing lamps in black and glass-ball shelf lamps with muted lighting make the room feel comfortable and inviting. Add a few dark wood or black bookshelves and a Persian rug to complete the ambiance.
Sandstone grey walls, off-white moldings and accents in black provide an ideal backdrop for a red sofa to make a statement. Keep other furnishings such as chairs, coffee tables and bookshelves black to keep focus on the red sofa. Incorporate accents of black and white framed photographs to give the living room a modern, yet lived-in, feel.