Adjust color or tone using the Targeted Adjustment tool in Camera Raw

The Targeted Adjustment tool allows you to make tonal and color corrections by dragging directly on a photo, rather than by using sliders in the image adjustment tabs. For some people, dragging on the image is a more intuitive way to work. Using the Targeted Adjustment tool, you can drag down on a blue sky to desaturate it, for example, or drag up on a red jacket to intensify its hue.

To make color adjustments with the Targeted Adjustment tool , click it in the toolbar and choose the type of correction you want to make: Hue, Saturation, Luminance, or Grayscale Mix. Then, drag in the image.
Dragging up or right increases values; dragging down or left decreases values. Sliders for more than one color may be affected when you drag with the Targeted Adjustment tool. Selecting the Grayscale Mix Targeted Adjustment tool converts the image to grayscale.
To make tone curve adjustments using the Targeted Adjustment tool , click it in the toolbar and choose Parametric Curve. Then, drag in the image.
The Parametric Curve Targeted Adjustment tool adjusts the Highlights, Lights, Darks, or Shadows curve region based on the values in the image where you click.

The keyboard shortcut T toggles the last Targeted Adjustment tool you used.