Blue Hour palette
Nightfall Deck
Five stops tuned to sit together without fighting — #ae2f00 ink anchors the set, #ffc4b3 opens it up, and #e25a34, #ff7a56, #ff977a cross the middle in a split-complementary arrangement. Nightfall Deck suits book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redbluehourfive-stop
#ae2f00
#e25a34
#ff7a56
#ff977a
#ffc4b3
The generator opens with #ae2f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.