Visualizing the XYZ Color Space 

This presents a three-dimensional visualization of RGB and XYZ colorspaces. The wide-gamut XYZ colorspace, though long appreciated in the color community, is taking on increasing relevance since its adoption as part of the Digital Cinema Standard.
Created by Jeremy Selan (Sony Pictures Imageworks). Featured in Siggraph 2005's Electronic Theater. Reproduced with permission of author. All rights reserved.