BibTeX Reference for “CSS Color Module Level 4”

@TechReport{Lilley:20:CCM,
  author      = "Chris Lilley and Tab Atkins Jr.",
  title       = "{CSS} Color Module Level 4",
  month       = nov,
  note        = "https://www.w3.org/TR/2020/WD-css-color-4-20201112/",
  year        = "2020",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}