Blue Hour palette
Flint Cellar
Five blue hour stops with room to breathe — #8c2d00 grounds, #bc5732 and #db734e do the talking, #e28869 softens, #ffa687 lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangebluehourfive-stop
#8c2d00
#bc5732
#db734e
#e28869
#ffa687
The generator opens with #8c2d00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.