I really like this technique of how Jessie from the My Mod Style blog matched the color of the carpets to the wall. Very balanced and monochromatic which I love. Color without being busy.
You can tell she is a designer. The carpets she used are from IKEA (@ $9 ea.). I didn't like any of the colors but they had some white round carpets....I wonder if I could dye those to be a color I liked or if that would be catastrophe.