Look in the upper-right corner of Lightroom, and make sure you're in the Develop module.
We're now going to look at the HSL / Color / B&W panel.
The panel has three sections:
Let's look at each section.
A color that you see in a photograph is composed of three components.
Therefore, the HSL section has a sub-section for each of the three components.
Click one of the sections.
Or, click All to see all of the sub-sections at once.
Let's look at the three sub-sections.
Hue is another word for color.
Drag the sliders to change the colors.
You can also click-and-drag on the photograph.
Do the following.
1) Click the target-part-of-a-photograph icon in the upper-left corner of the sub-section.
2) On a color in the photograph, click, hold, and drag up-and-down.
The color you selected will be modified.
3) Click the Done button when you're finished.
The button is located below the photograph on the right end.
Saturation is the amount of gray in a color.
Think of it as being the vividness/richness of a color.
Drag the sliders to change the saturation.
You can also select a color on the photograph, as described above.
Luminance is the brightness of the tones.
Think of it as being the black-and-white component of color.
You may have encountered the term luminosity in other programs.
Drag the sliders to change the luminance.
You can also target a color on the photograph, as described above.
The Color section is a variation of the HSL section.
There's no target-part-of-a-photograph icon for dragging on a color in the photograph.
You can use the B&W section to tweak black-and-white photographs.
Go to Convert to B&W.