Travel by Color is an online tool developed by travel site Explorra that lets you pick a color (or you can choose to go with a random selection) to discover a variety of destinations containing that hue.
While I doubt that most users of the tool will actually use the service to choose their next vacation destination, it is nonetheless a fun way to explore the wide variety of colors offered by locales around the world.
This is awesome. Gives me plenty of ideas for vacationing spots. Thanks for shring!