Susam on Twitter: "Number of color names defined in LaTeX xcolor package: • Base colors (always available): 19 • Colors via dvipsnames option: 68 • Colors via svgnames option: 151 • Colors
xkcd color list for LaTeX users… - Romano Giannetti's blog
All you need to know about colors in LaTeX - LaTeX-Tutorial.com
PDF] Extending L A TEX ' s color facilities : the xcolor package | Semantic Scholar