The 60-30-10 Rule You can start by creating a color palette with one main color, a secondary color and an accent color (thus 60-30-10), but don't stop there. “You can add layer upon layer and use the 60-30-10 equation with three new colors each time.
Accentuate the Accents The best way to add layers to your color scheme is with accent pieces and accessories, “Think about adding color in a sofa throw, a tablecloth, the china, pillows, a lampshade.”
Make It Seamless Complex color schemes aren't difficult “If the walls are purple, consider a plaid sofa throw with purple in one of the squares. Another square could be a complementary medium gold. Pillows could repeat the purple wall color and another complementary color, such as orange, could be introduced in an oxidized copper light fixture or fan.”
Colors That Connect You may consider surrounding yourself with a grounding color combo of analogous orange, green and yellow: “The orange (clay) color connects us to the earth, the green reflects the ‘safety’ of a canopy of trees and the yellow represents the giving aspects of the sun.”