Use space and slash separated color notation in CSS
Use 4 & 8 character hex color notation in CSS
Use hwb() color functions in CSS
Use the color() function in CSS
Use the rebeccapurple color keyword in CSS
Use the color-mix function in CSS
Use the relative color syntax in CSS
Style form elements when they are empty
Use the display-p3-linear color space on the color() function in CSS
Mix any number of colors with the color-mix function in CSS
Use the :any-link pseudo-class in CSS
Dynamically specify a text color with adequate contrast
The Reference Element Pseudo-class: :scope
Color helpers to ease transformation between formats, gamut, etc
Use the syntax production in syntax descriptors
Nest rules inside each other in CSS
Use mixins in CSS
Use lab() and lch() color functions in CSS
Discard empty rules and values with PostCSS.
Use the unset keyword in CSS.
Use Custom Properties Queries in CSS
Use oklab() and oklch() color functions in CSS
Use light and dark color schemes in all browsers
PostCSS plugin to reduce calc()