Retro palette
Copper Crossing
Dark anchor, working middle, light release: #8a001b, #bc3a40, #dc575a, #e27170, #ff8f8d form a tetradic retro set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
redretrofive-stophigh-contrast
#8a001b
#bc3a40
#dc575a
#e27170
#ff8f8d
The generator opens with #8a001b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.