Images are from https://www.refactoringui.com/ book
- 0° is red
- 120° is green
- 240° is blue.
- 0% saturation is grey (no color)
- 100% saturation is vibrant and intense.
- 0% lightness is pure black
- 50% lightness is a pure color at the given hue.
- 100% lightness is pure white