coolors

是一家在线色轮提取网站，使用兼容很强，提供RGB、CMYK、LAB、SHB、HEX五种色彩模式，可以根据自己的要求进行色彩搭配，是配色的必备神器.

WebGradients is a free collection of 180 linear gradients that you can use as content backdrops in any part of your website.

The daily color digest

Beautiful colored gradients

2017 Grabient by unfold

Beautiful Color Palettes