Colours made from oxygen
22 colours that our sources say are made from oxygen.

White
Zinc oxide
A white inorganic powder used in pigments, ointments, ceramics and electronicsPigment 路 馃嚠馃嚦 India +2
#50C878
Paris Green
A toxic emerald-green pigment once prized in art and used as an early insecticidePigment 路 馃嚛馃嚜 Germany +4
Green
Scheele's green
A yellowish-green pigment once prized for its brilliance, now infamous for its toxicityPigment
#40826D
Viridian
A blue-green pigment made from hydrated chromium oxide, valued in painting since the 1800sPigment

White
Barium sulfate
A dense, white mineral used in pigments, X-rays, and industryPigment
Brown
Iron oxide
Earthy pigments made from iron and oxygen, found in nature and used since prehistoryPigment
Black
Manganese dioxide
A black-brown mineral oxide used in batteries, pigments, and chemical reactionsPigment
White
White lead
A historic opaque white pigment once made from lead and vinegarPigment
White
Zinc phosphate
A white inorganic compound used to protect metal and in dental cementPigment
Yellow
Calcium chromate
A bright yellow, highly toxic pigment and industrial chemicalPigment

Purple and violet
Cobalt(II) phosphate
A violet pigment and chemical compound used as cobalt violet in artPigment
White
Barium metaborate
A white or clear inorganic compound used in optics and as a pigmentPigment
Yellow
Bismuth vanadate
A strong yellow pigment made from bismuth and vanadium oxidesPigment
Grey
Calcium plumbate
A lead-based inorganic pigment once used to prevent corrosion in paintsPigment
Yellow
Curcumin
The bright yellow pigment found in turmeric rootPigment
Blue
Indigo carmine
A water-soluble blue dye made from indigo, used in food, medicine and sciencePigment 路 馃嚭馃嚫 United States
Orange
Canthaxanthin
A reddish-orange pigment used in food and animal feedPigment 路 馃嚭馃嚫 United States +1
Orange
Violaxanthin
An orange pigment found in many plants and used as a food colouring in some countriesPigment 路 馃嚘馃嚭 Australia +1
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Paris Green: Chris goulet at English Wikipedia, CC BY-SA 3.0, source
- Viridian: Josh814, CC BY-SA 4.0, source
- Cobalt(II) phosphate: Smokefoot, CC BY-SA 4.0, source
- Manganese dioxide: Dxz2019, CC BY-SA 4.0, source
- Zinc oxide: Andrew Silver, USGS, Public domain, source
- Barium sulfate: de:Benutzer:the-viewer, CC BY-SA 3.0, source
- Scheele's green: Georg Friedrich Kersting, Public domain, source
- White lead: Thester11, CC BY 3.0, source
- Barium metaborate: Totalirus, CC BY-SA 4.0, source
- Iron oxide: http://en.wikipedia.org/w/index.php?title=User:Fuzic&action=edit, Public domain, source
- Curcumin: Holger M M眉rk, CC BY-SA 4.0, source
- Indigo carmine: -- 銉°儷銉撱儷 ( talk ) 08:10, 28 January 2011 (UTC), CC BY-SA 3.0, source
- Violaxanthin: Yikrazuul, Public domain, source