Our lounge is now a warm peachy-pink colour with a border of faint gold stars and I really like playing in there, but it used to be pale green and I didn't like playing in there so much then, it felt really cold and uninspiring.
Are you planning to redecorate Muddy Paws? I just

lurve

paint charts - I think in another life I would like to be the person who thinks up all the wacky names for paint colours. I always like to choose paints with appropriate names (bit like choosing wine because of a pretty label

). My lounge paint is called "Snuggle up" which I thought conjured up a great image. The kitchen is Treacle Cream, and the utility room is Lunch Date which always makes me laugh. My daughter's bedroom is Brasserie, which we renamed Brassiere as it seemed more appropriate. Maybe you can find a paint with a musical sounding-name that will inspire your playing
There's bound to be some research somewhere about colours which influence creativity in different ways. Also I think some Feng Shui principles relate to colour.
Rambling now so I'll stop...