The Hue/Saturation command lets you adjust the hue, saturation, and lightness of color components in an image. Additionally, you can simultaneously adjust all the colors in an image. This is useful to adjust colors in an image that appears slightly out of phase or skewed toward a color, such as an image that appears to have a blue overcast
When combined with a selection command (such as Color Range), the Hue/Saturation command can be used to selectively enhance colors in an image.
Lets give the command a try:
Step 1. Open the file Hue_Saturation.jpg (provided for educational use only). You’ll subtly tweak the color in the motorcycle.
Step 2. Choose Select > Color Range and click the motorcycle body to make an initial selection. Hold down the Shift key to add to the selection. Adjust the Fuzziness slider to soften the selection. Use the Localized Color Clusters to further constrain the selection. Click OK when you have a suitable selection.
Step 3. Click the Hue/Saturation button in the Adjustments panel to add an adjustment layer.
Step 4. The two color bars at the bottom of the dialog box represent the colors in the color wheel. The upper bar shows the initial color; the lower bar shows the new color. Drag the Hue slider to the left until maroon appears under red.
Step 5. Additionally, you can adjust Saturation (which is the intensity of the color) and adjust Lightness (which adds white or black to the image). Increase Saturation to +15 and decrease Lightness to -20.