postcss-color-hsl(latest: 2.0.0) PostCSS plugin to transform W3C CSS Color Module Level 4 hsl() new syntax to more compatible CSS (comma-separated hsl() or hsla())
postcss-color-rgb(latest: 2.0.0) PostCSS plugin to transform W3C CSS Color Module Level 4 rgb() new syntax to more compatible CSS (comma-separated rgb() or rgba())