Results for "medicine"
26 colours found.

White
Zinc oxide
A white inorganic powder used in pigments, ointments, ceramics and electronicsPigment · 🇮🇳 India +2
Brown
Aniline
A colourless oil that darkens with air and launched the first synthetic dyesPigment · 🇩🇪 Germany

Blue
Methylene blue
A synthetic blue dye and medicine first made in 1876Dye
#003153
Prussian blue
A deep blue pigment first made in Berlin in the early 1700sPigment · 🇯🇵 Japan
Yellow
Tartrazine
A synthetic lemon yellow dye widely used in food, cosmetics and medicinesDye
Purple and violet
Crystal violet
A synthetic purple dye used in science, medicine, and industryDye
Brown
Catechu
A brown plant extract used as a dye, tannin, and preservativeColour named from nature · 🇯🇵 Japan +2
Red
Dragon's blood
A deep red resin from several plants, used as pigment, dye and varnish since ancient timesColour named from nature · 🇮🇳 India +3
#1C05B3
Trypan blue
A synthetic blue azo dye used to stain dead cells in science and medicineDye

Brown
Bryoria fremontii
A dark brown lichen used for food, medicine, and dye by First Nations in North AmericaColour named from nature · 🇷🇺 Russia
Brown
Haematin
A dark bluish or brownish iron pigment formed by oxidising haemPigment

Yellow
Tansy yellow
A golden-yellow dye from the flowers of the tansy plantColour named from nature · 🇮🇪 Ireland
Red
Dragon's blood (from Dracaena cinnabari)
A deep red resin from the Socotra dragon tree, prized as a dye and medicineColour named from nature · 🇾🇪 Yemen +1
Red
Carmoisine
A synthetic red dye used in foods and medicines in the EUDye
Orange
Sunset yellow FCF
A synthetic orange-yellow dye used in food, cosmetics, and medicinesDye · 🇺🇸 United States +1
Blue
Indigo carmine
A water-soluble blue dye made from indigo, used in food, medicine and sciencePigment · 🇺🇸 United States

Blue
Brilliant blue FCF
A synthetic blue dye widely used in foods, drinks, and medicinesPigment · 🇺🇸 United States
Yellow
Quinoline Yellow WS
A greenish yellow synthetic dye used in foods, drinks, medicines and cosmeticsDye · 🇦🇺 Australia +1
Yellow
4-Nitroaniline
A yellow chemical used to make dyes and other industrial productsPigment
Red
Indian madder
A plant root once prized for its red dye and pigmentColour named from nature · 🇮🇳 India +1
Blue
Patent Blue V
A synthetic blue dye used in food, medicine, and chemistryDye
Red
Red yeast rice红曲米
A vivid reddish purple rice coloured by a special mould, used in food and medicineColour named from nature · 🇨🇳 China +3
Red
Haematoxylum brasiletto
A Central American tree whose heartwood gives red and pink dyesColour named from nature · 🇲🇽 Mexico +5
Brown
Gambier
A yellow-brown plant extract used as dye, tannin and traditional medicineDye · 🇮🇩 Indonesia +4

Yellow
Borututu
A yellow colouring from the bark of an African tree, used in Ghana and AngolaColour named from nature · 🇦🇴 Angola +1
Yellow
Gamboge (from Garcinia cambogioides)
A yellow resin from the Garcinia cambogioides tree, used in food, paint and medicineColour named from nature · 🇮🇳 India +2
Photo credits on this page
The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.
- Trypan blue: Smokefoot, Public domain, source
- Bryoria fremontii: Millifolium, CC BY-SA 3.0, source
- Catechu: Maša Sinreih in Valentina Vivod, CC BY-SA 3.0, source
- Aniline: Smokefoot, CC BY-SA 4.0, source
- Zinc oxide: Andrew Silver, USGS, Public domain, source
- Dragon's blood: Andy Dingley, CC BY-SA 3.0, source
- Tartrazine: Buli, CC BY-SA 4.0, source
- Borututu: Contreiras45, CC BY-SA 4.0, source
- Methylene blue: Amanda Slater, Flickr user amandabhslater, CC BY-SA 2.0, source
- Crystal violet: Richard Masoner, CC BY-SA 2.0, source
- Prussian blue: Picture created by publunch, Public domain, source
- Tansy yellow: Georg Buzin ( Diskussion ), CC BY-SA 4.0, source
- Dragon's blood (from Dracaena cinnabari): Boris Khvostichenko( User:Boriskhv ), CC BY-SA 4.0, source
- Gamboge (from Garcinia cambogioides): Franz Eugen Köhler, Köhler's Medizinal-Pflanzen, Public domain, source
- Sunset yellow FCF: MarinaVladivostok, CC0, source
- Carmoisine: MarinaVladivostok, CC0, source
- Indigo carmine: -- メルビル ( talk ) 08:10, 28 January 2011 (UTC), CC BY-SA 3.0, source
- Brilliant blue FCF: Soldier of Wasteland, CC BY-SA 4.0, source
- 4-Nitroaniline: David Rouzek, CC BY-SA 4.0, source
- Indian madder: Vinayaraj, CC BY-SA 3.0, source
- Patent Blue V: Oz1sej, CC0, source
- Red yeast rice: Gluo88, Public domain, source
- Haematoxylum brasiletto: Roger Culos, CC BY-SA 3.0, source