1931 Color Matching Functions
Illuminants D65 (blue) and A (red)
Rendering of a GretagMacbeth Color Checker


These files are available for download. If you are not able to read Microsoft Excel format, click
the links for the HTM files, and use your browser to save the files in text format.
CIE Standard Colorimetric Observer Data,
provided from 380nm to 780nm, sampled at 5nm
 1931 2° CIE Standard Colorimetric Observer Data
 1964 10 °CIE Standard Colorimetric Observer Data
 Excel spreadsheet (Due to rounding, this file is slightly different from the html)
CIE Standard Illuminant Data
Full set of 1nm data, includes all of the following:
 Illuminant A
 Illuminant D65
 V_{M}(λ) 1988 Spectral Luminous Efficiency Function for photopic vision
 V'(λ) Spectral Luminous Efficiency Function for scotopic vision
 1931 2° CIE Standard Colorimetric Observer Data
 1964 10 °CIE Standard Colorimetric Observer Data
 Excel with all of the above
Spectral Data for Commonly Used Color Products
Code for CIE Color Difference formula CIEDE2000
 These are NOT official CIE code, and are not sanctioned or guaranteed in any way.
 Excel Spreadsheet, originally provided by Dr. Klaus Witt, BAM, Germany
 Matlab code
 IDL code
 Visual Basic code, intended to be used as a macro within Excel.
Note: The above code was debugged to match the output of the Witt spreadsheet.
Pointer Data Set
 This spreadsheet is available by permission from Dr Michael Pointer. These data are those on which the often cited paper was based.
The original article is "The Gamut of Real Surface Colors", M.R.Pointer, Color Research and Application 5 (1980).
 Excel Spreadsheet, as provided by Dr. Pointer
CIE 1701:2006 Cone Fundamentals for Various Field Sizes and Observer Ages
Planck's Blackbody Equation Enumerated
