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1931 CIE Chromaticity Diagram

(This requires Java 3D which can be installed here by running one of the installers according to your OS)

This Java3D applet may not work with certain browsers.

(Note: Mouse can be used to rotate the 3D diagram)

This 3D diagram is meant to provide some idea about the relationship among x, y, z. The colors are accurate to the capability of your monitor.