Seeing as how I am a complete icon addict, I decided to write a tutorial!
TUTORIAL #1 feat: Eva Green
Learn how to go from:
to
Step One: Duplicate your base. Set to screen, 100%.
Step Two: New Fill Layer, #161649. Set to Exclusion.
Step Three: New Fill Layer, #c2d7c9. Set to Color Burn.
Step Four: Duplicate base layer. Set to Screen 75%. Bring to Top.
Step Five: New Adjustment Layer, Hue/Saturation. Saturation +19.
Step Six: New Selective Color Layer.
REDS: Cyan -100, Yellow +20.
NEUTRALS: Cyan +51, Yellow -38.
Then you're done!
Different Icons w/this tutorial: