What is the HSL tab in Lightroom?
The colors that you see in the Hue/Saturation/Lightness (HSL) tab in Lightroom are based on three separate measures: Hue, Saturation, and Lightness.
The HSL tab allows you to adjust the color in a photograph. It is found in the Adjustments panel (Image > Adjustments) and is accessible in many ways. You can adjust the Hue, Saturation and Luminance separately or combine them. The Hue slider is a color wheel that allows you to choose a hue (red, yellow, green etc). The Saturation slider is a dial that controls how much of the color has been changed. The Luminance slider is similar to the brightness setting on a camera and controls the overall lightness or darkness of the image.
When you use the Hue, Saturation and Luminance sliders, you can see the effect on your image by clicking the preview thumbnail in the Layers … Read the rest