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|This box shows the colour Prussian blue.|
When using the RGB color model where red, green, and blue light are added together, Prussian blue has the RGB code of 0, 49, 83
Use as a medicine
Potential use in computer storage
Researchers have experimented replacing some of the iron atoms in Prussian blue with cobalt. When the Prussian blue compound is lit with a red light at -150 C, the compound shifts from being non-magnetic (off) to magnetic (on). The magnetic shift does not change back except if deliberately reversed (or undone) with heat.
This magnetic property means the compound can be used in computer storage. Because the compound can be turned "on" and "off" in a controlled way, it can remember binary information. Binary information is used for computer storage.
This way of using the compound is still being developed.
It is also used as a machinists dye to check wear patterns.
Tones of Prussian blue color comparison chart
|Dark Slate Blue||#483D8B||72||61||139||248°||39%||39%||(web color)|
|Persian Indigo||#32127A||50||18||122||258°||74%||27%||(Regimental) (PerBang.dk) (Maerz & Paul)|
|Dark Imperial Blue||#00416A||0||65||106||203°||100%||21%||Imperial Blue (ISCC-NBS)|
|Midnight Blue||#191970||25||25||112||240°||64%||27%||(web color)|
|Dark Midnight Blue||#003366||0||51||102||210°||100%||20%||(Midnight Blue (Crayola))|
|Prussian Blue||#003153||0||49||83||205°||100%||16%||(Berlin Blue) (PerBang.dk) (Maerz & Paul)|
|Gulf Blue||#051657||9||22||87||228°||89%||18%||(Xona.com color list)|
- Boddy-Evans, Marion. "Artist's Pigments: The Accidental Discovery of Prussian Blue". Painting. About.com (New York Times). http://painting.about.com/cs/colourtheory/a/prussianblue.htm. Retrieved 2008-10-16.
- Ancient dye could brighten computer storage. Radio Canada: CBCNews.ca. January 18, 2007. http://www.cbc.ca/technology/story/2007/01/18/prussian-blue.html. Retrieved 2008-10-16.
- "Radiation Emergencies > Emergency Instructions > Fact sheet: Prussian blue". Emergency Preparedness and Response. Centers for Disease Control and Prevention: US Government, Department of Health and Human Services. 2005. http://www.bt.cdc.gov/radiation/prussianblue.asp. Retrieved 2008-10-24.