#2 - Oct. 28, 2014, 7:45 p.m.
Thanks for posting! To give some background, the system that the colorblind cvar commands relied upon saw a major overhaul in 6.0.2. The colorblind cvar subsystem—which was a set of debug commands
to simulate colorblindness for our testing purposes—was thereby rendered nonfunctional. We’re currently working on a more robust and fully featured colorblind shader system
to correct for colorblindness. However, that work is still ongoing, and it will be in a patch sometime after the release of Warlords of Draenor.
In the short term, we've reimplemented the colorblind cvar commands in a beta build that should see the beta test realm soon, and which we expect to be patched into the live game before the release of the expansion. The command has changed to “colorblindSimulator”, but all other settings numbers remain unchanged.