I can't speak from a decorating standpoint, but I'm always surprised at the number of home theaters that have walls with a strong color. All my edit suites are painted a neutral gray specifically because a viewers' eyesight will adjust to the prominant color in the room and influence the perceived accuracy of the monitor.
Picture your eyes adjusting to a very warm, yellow, sunlit room. When you look at a monitor with a particular color temp, that monitor is going to look "cool" or blue. Let your eyes adjust to a blue room, and the monitors' color will look warmer and redder.
Almost always, you need to make that good compromise in the color to meet the decorating needs...most non-HT theater buffs wouldn't want gray walls. But it might be worth mentioning in case you're looking into any "strong" or intense colors...
