Why does my monitor changes colors when the graphics adapter changes? Whenever my graphics adapter changes, whether intentionally or automatically, i notice the colors changing.They get definitely brighter, more blueish when on the high performance card. 
Is this normal? Different graphics cards mean different color?

MacBook Pro 2.4 GHz (Late 2011) MBP Unibody 15"


AMD Radeon HD 6770M
Intel HD Graphics 3000
It's not normal, but a known issue. The problem appears each time your MacBook Pro switches to a Discrete Graphics Card. 

There are a couple of things you could try, as a temporarily fix:


Turn Off the Automatic Graphics Switching in System Preferences / Energy Saver, Reboot, and then turn it On again. This will make the Discrete Card to be initialized correctly. This fix will work, though, until your next reboot.
Use gfxCardStatus to force the use of the Integrated Card only.


Some users got rid of it just by Rebooting, Repairing Permissions, Upgrading to the newest version or Reinstalling, though.