well, finally figured out how to fix it thanks to you guys.
Go into energy saving >> Disable automatic graphic switching (basically force it on invidia)
Then go into displays >>> color >>> choose your favorite. (I chose color match RGB and that worked perfect for me).
Now go back into energy savings >>>> enable graphics switching >>> and you're done. (you might need to double check the color settings again)
----------
I recently bought a new 2012 non retina mbp 2.6 with an lg display that does the very same thing. It's annoying and actually made me realize that this display isn't as good as the late-2011 I had before this.
Try what i did and lemme know if it works for you.
----------
I have the same problem. What i always do is logout then re-login to get rid of the "blue hue". I don't think there's a permanent solution to this
Just fixed it. works good now, and settings stay the same even after a restart.