Retro palette
Tranquil Cellar
Dark anchor, working middle, light release: #be5239, #d6684e, #009eb8, #f58469, #00bddb form a tetradic retro set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
redretrofive-stop
#be5239
#d6684e
#009eb8
#f58469
#00bddb
The generator opens with #be5239 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.