Colors can be set using 3 different formats and are interpreted in this order.

  1. Named colors. Using the color name or color alias from the menu item ADMIN>Theme>Named colors. These colors are chosen to be esthetically pleasing.
  2. Hex code. In the format #RRGGBB. Full freedom to choose any color.
  3. HTML color name. Not recommended and exists for backward compatibility reasons.

Always choose colors carefully to satisfy contrast requirements.