The CSS dictionary palette is the 17 color names in the W3C Cascading Style Sheet standard.

ColorTools:-DisplayPalette("CSS");

$\mathrm{plot}\left(\left[x\,x^3\right]\,x=-1..1\,\mathrm{color}=\left[''CSS\; 1''\,''CSS\; Orange''\right]\right)$

$C≔\mathrm{ColorTools}:-\mathrm{Color}\left(''CSS\; 10''\right)$

$C≔⟨RGB\; :\; 0\; 0.502\; 0.502⟩$

$P≔\mathrm{ColorTools}:-\mathrm{GetPalette}\left(''CSS''\right)$

$P≔⟨Palette\; CSS:BlackRedMaroonOrangeYellowOliveLimeGreenAquaTealBlueNavyFuchsiaPurpleGraySilverWhite⟩$

$P\left[1\right]$

$⟨RGB\; :\; Black⟩$

$\mathrm{ColorTools}:-\mathrm{Swatches}\left(P\right)$