Blue Hour palette
North Fen
Five blue hour stops with room to breathe — #7b1800 grounds, #af3e25 and #ce5a41 do the talking, #d5725b softens, #f48e76 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
redbluehourfive-stophigh-contrast
#7b1800
#af3e25
#ce5a41
#d5725b
#f48e76
The generator opens with #7b1800 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.