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[oc_oth_icons]

from this
 to this

Uses Curves and Selective Coloring. Not translatable, sorry.

1. First crop & resize your base.

2. Open a new curves layer. 
Layer > Curves. With these settings
RGB > Input: 96 Output: 133

3. The Duplicate that layer & set the opacity to 70%.

4. Create a new Selective Color layer. Layer > New Adjustment Layer > Selective Color.
Use the following settings:

White: 0,0, -100, 0

5. Layer > New Adjustment layer > Channel mixer

Red: 158%, -64%, 0

6. Hue/Saturation
Master: Saturation +20
Red: Saturation +30

7. Open a Brightness/Contrast layer

Brightness: 6
Contrast: 6

Your all done =D
I hope this is useful for you! 
If you have any problem with this tutorial, please, let me know and I'll try to help.
I'd love to see what you come up with.

Other examples:
With some changes.