Color Hunt is a free and open platform for color inspiration with thousands of trendy hand-picked color palettes

一个不错的配色网站，提供整体配色方案！有点卡，外国站点！

Flat UI Colors 2 - 14 Color Palettes, 280 colors

Beautiful and simple UI for generating web gradients.

‎简单的选色器

Best Flat Colors For UI Design