Assuming someone has provided you with an HSL (Hue, Saturation, and Luminosity) value of a color, and asked you to add a rectangle of that color to a slide, then how do you proceed? Let’s also explore another scenario. What if you have started with a color that’s close enough to what you need, but it’s not the exact one. Maybe you need it to be a little less saturated? Again, you will benefit by working with the HSL color model rather than the RGB model.