gamma: -50 or the darkness set.
contrast: 70
brightness: 93

red: 49
green: 50
blue: 50

Color temperature: 6500K green/blue set, until ingame sunlight become white/yelow and sunny sky become white/blue (like in the reality).
Also you can make this sets from conltrol panel of Nvidia and from Catalyst control center of ATI.

Like this way you'll get better colours in every other games and it's
safety for the eyes. 
You just need to increase a little the gamma, contrast or brightnes of them settings. 