The History of Indigo

Indigo is still used extensively to day, especially for dying denum for your blue jeans. Green tones have come from lichen fungi and especially minerals. Copper has been a big one here, but cobalt has also been used to make some shades of green. When it s two shades of black there are all kinds of very common things that you can use to make paints and inks out of including soot, ivory and bones.