We have talked a lot about choosing color here, and I have had success using the Sherwin-Williams Color Visualizer, here is an example I wrote about in 2011. Although nothing beats a color consultant, like these ladies, there are other ways consumers and contractors can explore color.
Sherwin-Williams ColorSnap Glass is the latest in Technology. ColorSnap has been a popular app to match colors and find palettes using your device, but Snap Glass takes it a step further. ColorSnap Glass allows you to take a photo of anything and it translates the colors into Sherwin-Williams color swatches and creates palettes. Users can share the colors with others as well.
Right now Google Glasses are limited, and at $1500 a pair, not for everyone, but it it will be interesting to see the way they can be used!