Blue Hour palette
Linen Delta
From #833600 ink through #c05300, #df6f2f, #e68654 to #ffa679 light, Linen Delta is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangebluehourfive-stop
#833600
#c05300
#df6f2f
#e68654
#ffa679
The generator opens with #833600 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.