How to achieve this color and tonal range?

[IsenGrim]

Note: This image is not mine. I'm only using it for learning purposes.

Assuming we start from a 'correctly' exposed image.
I can tell this much:
Filled shadows to bring a low contrast look.
Decreased maximum white output to make the white less white (more grey)
Maybe decreased exposure
Vignetting

But i can't tell the color tones used.
I'm guessing its a duotone overlay, green on the highlights, and blue on the shadows........
But I can't seem to find the green and blue color values and saturations to reproduce such colors...

Or is there a well known lightroom/PS action to do something similar?
Any direction?

 

[NedKelly]

could be a dual duotone.

If you are using light room, you could try (ontop of your mentioned steps),
1) at white balance, shifting to blue slightly, and shifting to green slightly
1-a) might need to do a bit of desaturate

2) at duotones, adding orange/red to shadows, maybe pale yellow/very slight tinge of yellow-green to highlights
Might be a balance of 1+2

3) then if any other colours pop up too much, try reducing saturation of specific colour at the individual colour panel.