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involves selective coloring


1. duplicate your base and set it to screen.
it depends on how dark your base is. i set mine to 64%.

2. new adjustment layer> hue/saturation
saturation: 21

3. new adjustment layer> selective coloring
reds: 0, 100, 0, -36
yellows: -100, -48, -34, 0
greens: 100, 0, 0, 0
neutrals: -7, 0, 13, 0
blacks: 100, 100, 100, 100

4. new adjustment layer> color balance
midtones: -71, 50, -39
shadows: 24, 14, 1
highlights: -11, 4, 0

5. new adjustment layer> selective coloring
reds: -39, 34, 27, 11
yellows: -13, -9, 0, 0
neutrals: 0, 0, -16, 0

6. color fill
01091F exclusion 100%

7. color fill
C7E2EE color burn 100%

and you're done.