Adobe Color

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.

A great tool that generates linear gradients, with the ability to customize each gradient, and download the CSS gradient code.

Color palettes generator, ColorSpace is a space for everything that has to do with color palettes and gradients.

Dribbble Color is a wonderful tool that allows you to display all dribbble shots, based on certain colors.

uiGradients is a community contributed collection of beautiful multi-color gradients, free to use on your next UI or design project.

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