Benjamin Moore & Sherwin Williams Color Palette
http://www.benjaminmoore.com/bmpsweb/portals/bmps.portal?_nfpb=true&np=public_site/articles/application_article/app_colorExplorerTool&_pageLabel=fa_profresources#&ce_vm=0.
http://www.sherwin-williams.com/pro/paint_colors/explore/color/