Choose Image > Adjustments > Replace Color.
The Replace Color dialog box opens, and by default, the Selection area displays a black representation of the current selection.
Notice the three eyedropper tools in the Replace Color dialog box. One selects a color; the second adds a color to the sample; the third removes a color from the sample.
A. Eyedropper tool B. Add To Sample eyedropper C. Subtract From Sample eyedropper