A lot of it has to do with the demographics of your surfer..
The asian countries tend to sell better with pastel colors, and earth tones, where as the U.S. surfers tend to sell better with hard colors, red, black, white..
Another thign to consider it what KIND of site you have.. A Bondage site wouldn't sell well if it had a pastel pink or baby blue background, and a teen site wouldn't sell well ( I guess ) with a harsh / black background
