House Color Renderings

Does anyone have info or advice on a good color rendering software? We've historically used SW and PPG color consulting for renderings when customers want them, but we're moving it in house. I need a high quality software that is easy to use and produces good results, that SW and PPG colors (and preferably BM and Behr) are either already in or can be loaded into.
If anyone has knowledge in this area I'd appreciate it.