A very useful free color wheel and color palette generator for designers and developers. You can also upload an image to get colors from it.
The super fast color schemes generator! The Coolors app allows you to create, save and share perfect color palettes in seconds!
Color palettes generator, ColorSpace is a space for everything that has to do with color palettes and gradients.
uiGradients is a community contributed collection of beautiful multi-color gradients, free to use on your next UI or design project.