A great way to add style to an image is to apply a different color to an area to make it stand out. But before you start experimenting with the rainbow, you’ll want to understand the three basic elements that make up color in Photoshop. Hue describes the color you are using — like blue, green, or red. Saturation describes the intensity of the color. And lightness is how light or dark the color is.
Now dive into some ways to adjust hue, saturation, and lightness or change the color of an object in your photos:
Alter a color in your image easily by adding a Hue/Saturation adjustment layer. This is a non-permanent change you can undo anytime.
Make permanent, global color changes via Image › Adjustments › Replace Color. Use the Adobe Color Picker or HSL sliders to perfect your tweaks.
Select the Color Replacement tool by holding down the Brush tool. Then choose the color you’d like to replace and manually paint over it with a new color.
Photoshop makes it easy to fine-tune which colors you target with replacement. Whether you’re using a Hue/Saturation adjustment layer or working with the Replace Color tool, you can focus in on either a narrow or wide swath of hues depending on your desired outcome.