Spaced Ranger said:

Yep, PJ is certainly "coloring" his films. He's even pre-coloring make-up for processing compensation in The Hobbit movies (note the make-up applier's own skin for comparison):

The Red-brand digital cameras now are legitimately a part of it. "Red camera tends to eat color a little so we add more color", said a TH:AUJ production designer in an official blog video about 3D filming. But, if the picture is red-reduced for a general shift towards teal (requiring red make-up pre-emphasis for better flesh-tones after red reduction), then that indicates a deliberate teal-tint agenda going on here.

Good thing we're around to fix it!

Yes, i saw the official blog video that had that bit as well months before the release of the film in the cinema but I really discovered this for myself when I started regrading this film. It made removing the teal tint a real pain in the arse.

When i removed the teal and got the whites in the clouds looking just right to my eyes, the red makeup that the dwarves were wearing really stood out, especially balin's makeup.

In the end I had to compromise and make the overall colours slightly colder than I really wanted by reducing the reds so that all the dwarves wouldn't look like they were suffering from severe sunburn throughout the whole film.