Another method, CS3, CS4 or LR, is to use Split Toning in ACR. I usually start by setting the saturation sliders at 25. Then I adusted the Hue sliders, balance sliders and saturation sliders as needed.
Note: I start with the saturations sliders at 25 as I found that's what works for me.
Just because I don't see it doesn't mean there isn't a picture there.
M8, Elmarit 28 2.8, Summitar 5 CM 2.0, Voigtlander 75mm F 2.5, Nikkor H 5 CM 2.0
Not work safe