If you look at the blanket directly below the fingers of his left (our right) hand, you'll see why Hue/Saturation won't work for this anyway, regardless of any cast issues. See the weird flat shadow areas?
Ok, try this ... add a Channel Mixer adjustment layer, and enter these values:
Red 0, +90, 0, 0
Green 0, +100, 0, 0
Blue 0, +125, 0, 0
Then mask on to the shirt, and show me how it looks.
Download the PSD
First, a chunk of hair from a bit further along, to cover that tricky black bar.
Then a Solid Color layer on Multiply mode.
Then a gradient layer for the whole background (I forgot the noise layer).
Sorry, it can't be done.
You'd have to replace it all with the dark colour from the middle section of the background. Even that would be a bit dodgy, but should be passable.