Tropical palette
Brazen Fen
Dark anchor, working middle, light release: #9d3229, #b5483d, #007f8d, #d46457, #009dae form a tetradic tropical set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
redtropicalfive-stop
#9d3229
#b5483d
#007f8d
#d46457
#009dae
The generator opens with #9d3229 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.