flatui 调色 https://flatuicolors.com/?utm_source=caibaojian.com
web安全色 http://tool.chinaz.com/Tools/web
云配色 http://card.qdsay.com/color/safe
高级在线调色 http://www.peise.net/tools/web/
介绍调色的文章 http://www.uisdc.com/color-artifact-web
在线调色板(很简单的) http://www.tool.la/ColorHex/
常用rgb颜色 https://wenku.baidu.com/view/448f9bb9852458fb760b5657.html
ARGB与RGB、RGBA的区别 https://blog.csdn.net/caption_deng/article/details/52366907
rgb和rgba的转换(代码) https://blog.csdn.net/junjun56/article/details/45866591