Blue Hour palette
Luminous Lane
From #731900 ink through #a63f25, #c45b40, #cc715a to #eb8d75 light, Luminous Lane is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
redbluehourfive-stophigh-contrast
#731900
#a63f25
#c45b40
#cc715a
#eb8d75
The generator opens with #731900 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.