Blue Hour palette
Polar Cabin
Five blue hour stops with room to breathe — #b1575f grounds, #ae5e36 and #9e6b07 do the talking, #cf7279 softens, #cc7951 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size.
redbluehourfive-stop
#b1575f
#ae5e36
#9e6b07
#cf7279
#cc7951
The generator opens with #b1575f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.