Erase Unwanted Color Fringing in Photoshop (Hue/Saturation Method)
When cutting out subjects from saturated backgrounds, fine hair often picks up unwanted color. A targeted Hue/Saturation adjustment lets you neutralize that fringe naturally, while clipping and masking keep the correction limited to the subject’s edges.

Step-by-step instructions
Add a Hue/Saturation adjustment and target the fringe color
Click the Adjustment Layer icon → Hue/Saturation (or Layer → New Adjustment Layer → Hue/Saturation)
In the Hue/Saturation properties, choose Greens from the dropdown
Temporarily set Hue to +180 and Saturation to +100 to visualize the affected range
Adjust the range sliders to include the fringe greens without spilling into hair yellows
Fine‑tune the feather sliders for a softer transition
Neutralize the fringe color
Reset Hue and Saturation to 0
Adjust Hue until the fringe matches the natural hair tone
Lower or raise Saturation to blend (tweak Lightness if needed)
Zoom in/out to judge edges objectively
Stop when the green cast is gone
Limit the correction to the subject only (clip it)
Alt/Option-click the line between the Hue/Saturation layer and the subject layer to create a clipping mask
Now the adjustment affects only the subject, not the background
Change the background color freely without reintroducing the cast
Verify edges remain neutral against different backgrounds
Revisit Hue/Saturation if minor tweaks are needed
Protect genuine greens inside the subject (mask it)
Select the Hue/Saturation layer mask thumbnail
Press Ctrl/Cmd+I to invert the mask (hide the adjustment)
Choose the Brush Tool with a soft edge; set foreground color to white
Paint over only the fringe areas to reveal the adjustment where needed
Stay broad—precision isn’t critical, just cover the halos
Review and refine
Toggle the Hue/Saturation layer visibility on/off to compare
Adjust Hue/Saturation sliders for final balance
Paint black on the mask to hide any over-correction
Feather the mask if transitions look harsh
Save your file once the fringe is neutralized