there's also http://www.todotoh.com/rgb/rgbanalysis.aspx http://www.todotoh.com/rgb/rgbanalysis.aspx which takes a screen cap and returns a list of hex codes so

there's also http://www.todotoh.com/rgb/rgbanalysis.aspx http://www.todotoh.com/rgb/rgbanalysis.aspx which takes a screen cap and returns a list of hex codes sorted by most frequently used. It doesn't work on every site, but it does for most. I use it to quickly get the color palette for a site I think looks good.