My most fave color combinations for interiors are colors that are analagous, or side by side on the color wheel. If you choose to do this, it looks great to have one of the colors be primary and strong, like grass green, and the other color to be pale and soft, like blue aqua. That is the winning combination I chose for my sweet and sour nursery project. For Maddy's big girl room, I am hitting up the other side of the color wheel - pink to orange, red, and purple. I love color besties!
*Lots of pics from Paloma at La Dolce Vita and Lily at Gold and Gray...thanks for the inspiration, girls!