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Prussian blue
What color is Prussian blue?
Prussian blue is a dark blue pigment that is artificially made by oxidation of ferrous ferrocyanide salts.
It has the chemical formula Fe III 4 [Fe II (CN) 6] 3.
It is one of the first pigments made synthetically and was accidentally found in 1704 by two chemists in Berlin.
It is also known as Berlin blue, Brandenburg blue or, in painting, Parisian or Paris blue.
The dark blue uniforms of the Prussian army were dyed this color.
In a RGB color space, Prussian blue has the hexadecimal code #003153 and is composed of 0% red, 19.2% green and 32.5% blue.
The exact hue depends on the method of preparation, which dictates the particle size.
Example of the palette with the Prussian blue color
![Palette with colors: Wenge, Prussian blue and Zinnwaldite Picture with primary colors of Wenge, Prussian blue, Zinnwaldite, Peach-orange and Beaver](/images/prussian-blue/city-skyline-with-a-few-buildings.webp)
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Example of the palette with the Prussian blue color
![Palette with colors: Prussian blue, Bisque and Light slate gray Picture with primary colors of Prussian blue, Bisque, Light slate gray, Dark electric blue and Smoky black](/images/prussian-blue/painting-of-a-river-running-through-a-city.webp)
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What are the examples of Prussian blue color in life?
Some examples of Prussian blue color in life are:
Dark blue uniforms of the Prussian army.
The Great Wave off Kanagawa by Hokusai, a famous Japanese woodblock print that uses Prussian blue extensively.
Architectural and engineering drawings that use Prussian blue as a background color.
The antidote for certain kinds of heavy metal poisoning, such as by thallium and radioactive caesium, which is orally administered Prussian blue.
Example of the palette with the Prussian blue color
![Palette with colors: Prussian blue, Feldgrau and Onyx Picture with primary colors of Prussian blue, Feldgrau, Onyx, Teal blue and Camouflage green](/images/prussian-blue/gothic-castle-with-a-fountain.webp)
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What looks best in Prussian blue?
Example of the palette with the Prussian blue color
![Palette with colors: Prussian blue, Manatee and Feldgrau Picture with primary colors of Prussian blue, Manatee, Feldgrau, Almond and Gray](/images/prussian-blue/city-with-lots-of-tall-buildings-of-prussian-blue-color.webp)
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