| Often the best method evolves by testing. But considering that he original shirt is blue and the hair is not, the first thing I would try is clicking on the original with the magic wand near the hair on the blue, and then adjust the tolerance and click again until I get it right. Or, I'd take a look at the blue channel and see if I can click on that instead.
Or, I might try the Select Color Range tool to isolate this area.
Once I had my selection, I'd probably convert it to a layer mask, so I can tune the edges with a soft brush (if needed). Then I'd dump in the new color on the new layer that has the layer mask. |