Nautical palette
Cobalt Cabin
Five nautical stops with room to breathe — #80002a grounds, #b1374e and #d05467 do the talking, #d76d7a softens, #f78995 lifts. The analogous bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
rednauticalfive-stophigh-contrast
#80002a
#b1374e
#d05467
#d76d7a
#f78995
The generator opens with #80002a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.