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Useful Color Data

These files are available for download. All come "as is." We have found them useful, and done our best to ensure their accuracy. If you find out otherwise, please let us know.

CIE Standard Colorimetric Observer Data

  • 1931 2° CIE Standard Colorimetric Observer Data
  • 1964 10 °CIE Standard Colorimetric Observer Data
  • Excel spreadsheet

CIE Standard Illuminant Data

Full set of 1nm data, including all of the following:

  • Illuminant A
  • Illuminant D65
  • VM(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

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 170-1:2006 Cone Fundamentals for Various Field Sizes and Observer Ages

Planck's Blackbody Equation Enumerated

  • Excel Spreadsheet to Compute Blackbody Spectral Curves
  • This spreadsheet is provided as a courtesy. It was derived form wikipedia.com articles in March 2010. The plot makes a nice picture. If you plan to do real science, we suggest you verify the calculations yourself.