Colours made from bark
3 colours that our sources say are made from bark.

Purple and violet
Logwood
A tree whose wood yields a dye once vital for textiles and scienceColour named from nature · 🇲🇽 Mexico +3
Brown
Juglone
A plant compound that gives deep brown-orange colour to cloth, ink and foodPigment
Yellow
Symplocos tinctoria yellow
A yellow dye once made from the bark and leaves of a North American treeColour named from nature · 🇺🇸 United States
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Logwood: Kurt Stüber [1], CC BY-SA 3.0, source
- Symplocos tinctoria yellow: James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.o, CC BY 3.0 us, source