What are hsla values in css?

Question

I am not able to understand 'S' , 'L' in this. Please answer me.

Answer 1

HUE - Defines a degree on the color circle (from 0 to 360) - 0 (or 360) is red, 120 is green, 240 is blue
SATURATION - Defines the saturation; 0% is a shade of gray and 100% is the full color (full saturation)
LIGHTNESS - Defines the lightness; 0% is black, 50% is normal, and 100% is white
ALPHA - Defines the opacity as a number between 0.0 (fully transparent) and 1.0 (fully opaque)

refer here..
https://www.w3schools.com/cssref/func_hsla.asp