Dark colored and large furniture help to enlarge the space of a small living room. For orange colored sofa, try to use light color theme and blank walls that will work great with the overall look. The style and theme will determine the white or black walls in the room. The rugs and pillows can match the sofa color for giving exciting hints. Light colored wooden floor give and neat and clean effect. The wooden tables and floor match well with the orange color but you can play with metal and glass as well. The sofa must be piled up with matching cushions to stabilize the color. The curtains can be cream or charcoal in color. You can mix up the orange color sofa with yellow and red colored cushions, curtains, walls and rugs with splashes of white for creating highly energetic look.