Trianglify Generator
网页配色工具，里面有很多配色方案推荐
280种精选平面UI颜色，可供复制和粘贴使用
Color Claim was created in 2012 by Tobias van Schneider with the goal to collect & combine unique colors for my future projects.
功能强大的渐变色在线生成器，支持单色、双色，甚至三色渐变。
Adobe色轮配色工具，可以选择色彩模式与调和规则
Beautiful colors and designs to your inbox every week
