This look is typically created with split toning (or color grading), often starting from a strong black-and-white conversion and then adding blue/cyan into selected tonal ranges.

A common approach in Photoshop is:

1. Convert the image to a fairly contrasty monochrome so the whites and blacks remain clean.
2. Add a solid color fill layer using a light blue/cyan.
3. Set that layer’s blend mode to Color.
4. In Blending Options, use the Underlying Layer sliders to limit the tint mostly to the midtones, keeping deep blacks and bright whites less affected.
5. Fine-tune with Color Balance, Curves, or Brightness/Contrast as needed.

Another method is to use split toning/color grading directly in Lightroom, Photoshop, or similar apps, pushing cooler blue/cyan tones into shadows and/or midtones and adjusting intensity to taste.

The key is experimentation: exact settings depend on the photo, but the overall recipe is monochrome base + blue/cyan toning + tonal masking so the effect sits mainly in the midtones.