I am trying to create a group of repeaters to highlight an itinerary for trips (travel company). However, I don't want to have the same background colour for each item, but have them rotate through a selection of three colours. Using images seems really heavyweight and bad for load speed. There isn't a way to add a hex colour in databases. I have also tried changing a few repeater backgrounds manually in the editor, but this doesn't work.
Any ideas for how to do this?