Change Any Colour in Photoshop Using Hue/Saturation
Use a Hue/Saturation adjustment layer to retint any specific colour in seconds. You’ll sample the colour with the on-image Hand tool, expand the selection range for full coverage, and then set the exact hue and saturation you want. This approach is precise and fully editable.

Step-by-step instructions
Add a Hue/Saturation adjustment layer
Go to Layer → New Adjustment Layer → Hue/Saturation.
In Properties, click the Hand tool icon.
Sample the target colour
Click directly on the item whose colour you want to change.
Temporarily push Hue and Saturation to the right to see what’s being selected.
Broaden and smooth the range
Adjust the sliders beneath the gradient to include all of the target area.
Soften transitions and ensure skin or other nearby tones aren’t affected.
Refine until coverage looks clean.
Set the new colour
Return Hue and Saturation to 0.
Drag Hue to choose a new colour; tweak Saturation to taste.
Stop when the colour looks natural and consistent.
Create a monochrome look (optional)
Lower Saturation to -100 for a black-and-white/grayscale version.
If spill occurs, refine the colour range sliders to isolate the subject.