You upload a picture of your room and try out colors, I'm spending way too much time on this site.
Color Selector Valspar Granite Dust - Half Bath Walls
Barbara Hepworth Turning Form, 1957. See The Virtual Artist gallery: www.theartistobjective.com/gallery/index.html
Asters and Hydrangeas - Vanessa Bell
Poplars, Sunset at Eragny (1894) - Camille Pissaro.
Solopreneur Productive Home Office - How to create a productive home work environment
Edward Hopper (1882-1967)
Olson House by Andrew Wyeth where also Christina's world was painted in this vicinity.
Jardin et maison au Havre - Raoul Dufy...
Valspar virtual painter: You can upload a picture of your room and experiment with color. They even have a "change the lighting" tool, because we all know paint can look much different from sunlit to lightbulbs. Very cool!
Valspar Virtual Painter Tool - Upload a photo to test the look of colors before you paint
Virtual House Painter – Trying On Paint Colors
How to Preview Paint Colors on a Virtual House | eHow
Benjaminmoore.com -- Upload a photo of a room and use their color combo tool to see what it will look like.