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

Brown
Bryoria fremontii
A dark brown lichen used for food, medicine, and dye by First Nations in North AmericaColour named from nature · 🇷🇺 Russia

Yellow
Chrysothrix chlorina
A yellow to yellow-green powdery lichen used as a dye in India and SwedenColour named from nature · 🇸🇪 Sweden +5
Purple and violet
Orcein
A reddish dye made from lichens, changing colour with acidityDye · 🇳🇴 Norway +4