Listed below is a breakdown of the many constituents of the various inks in use today.
White – Titanium dioxide, Zinc oxide
Yellow – Cadmium sulfide (cadmium yellow), Ochre
Violet – Manganese violet
Green – Malachite green, Lead chromate, Ferro-ferric cyanide, Curcumin green, Chrome oxide (Casalis green),
Hydrated chromium sesquioxide (Guignet’s green) & Phthalocyamine dyes (copper salts with yellow coal tar dyes)
Red – Mercury sulfide (cinnabar), Cadmium selenide (cadmium red) & Sienna (ochre-ferric hydrate and ferric sulfate)
Blue – Cobaltic aluminate (azure blue)
Black – Carbon, Iron oxide & Logwood (extract from logwood tree)
Flesh – Iron oxides (a variant of color)