Violet - does not require the eye to focus, therefore objects and walls seem farther away. Great for making a room seem larger. Very subduing color. Try using it with its opposite color, yellow, for an eye-catching combination.
At one time, my mother had the living room painted in the last three shades of purple - each wall a different color. It worked beautifully with walnut furniture in a Scandinavian, spare design. The carpeting was a brown that matched the walnut, and the sofa was upholstered in textured black. Her collection of blue and amethyst glass bottles picked up the wall colors. This really worked!
Designer Palette Darryl Carter, a decorator known for his spare, tailored interiors, has collaborated with Benjamin Moore for his first line of paints. The collection of 24 subtle colors encompasses such calming shades as, from top, Pinecrest Gray, Bayard Blue, and Dalton Blue. A gallon of the self-priming paint costs $66, and a quart is available for $24. 800-672-4686; benjaminmoore.com
Purple is versatile because it is a mix of red and blue, and the exact color can vary based on the ratio of red to blue: http://www.bhg.com/decorating/color/paint/purple-paint-colors/?socsrc=bhgpin031214amethystpurple&page=2
Different shades of the same colors the girls had in their last room. Dressers are already purple and pink so maybe we can add varied shades and possibly a bit more green. Maybe add some orange accent too like in this pic.