Colour Wheels What are these Wheels made of, you ask? Rubia cordifolia, Red soil (Indian peninsular region), Tagetes, Verdigris, Hibiscus rosa-sinensis, Indigofera tinctoria, to name a few. Colour Wheel 5 Colour Wheel 6 Colour Wheel 4 Colour Wheel 5 Colour Loop! Colour Wheel 3 Colour Wheel 4 Colour Wheel 3 Natural Hues Share this:TwitterLinkedInEmailMorePinterestLike this:Like Loading...