Chromaticity Calculator
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 Description
 
I wrote this calculator to return the correlated color temperature for a passed chromaticity coordinate pair.  Alternately, it can tell you the chromaticity pair which is on the black body curve for a given Correlated Color Temperature.
 
 Chromaticity Calculator and Usage:
  

 
 
 
 
 
 
 
 
 
x:
 
 
 
 
Temp:
 
 
 
y:
 
 
 
 

 
To use this calculator, either type in an x, y pair on the left and click the >> button to see the correlated color temperature (CCT), or type in the CCT on the right and click the << button to see the x,y coordinates for that temperature.

http://www.markhunter.com/writings/articles/chromaticity.asp

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