trianglify

Khroma is the fastest way to discover, search, and save color combos you'll want to use.

uiGradients - Beautiful colored gradients，是以渐变色为主的分享网站，上百种渐变配色方案，可以根据自己的风格搭配，节约了试色时间。

Best Flat Colors For UI Design

Copy Paste Color Pallette from Flat UI Theme

Curated gradients for designers and developers

Beautiful Color Palettes