Try the calculator here.
This calculator displays colorimetric data for color patches of the Macbeth ColorChecker. It is inspired by Bruce Lindbloom’s color calculators.
Colorimetric data is calculated from spectral data in 10nm bands. CIE illuminants data has been averaged to 10nm. You can compare the results with the values on the Wikipedia page by choosing: Illuminant: C, Standard Observer: CIE 1931.
Plotting is done with jQuery Flot. Some testing is done with QUnit.
ColorChecker Spectral data:
Danny Pascale – averaged spectral data from 30 charts – CGATS format – 10nm – ColorChecker data.
CIE Illuminants and Standard Observer
Selected Colorimetric Tables on the CIE downloads page.
CIE Technical Report: Colorimtery – CIE 15:2004, 3rd Edition
Munsell Color Science Laboratory. CIE Standard Colorimetric Observer and Standard Illuminant Data
For a description of the CIE Standard Illuminants:
http://www.image-engineering.de/index.php?option=com_content&view=article&id=502