Blue Hour palette
Opal Foundry
From #9a3f00 ink through #cb6733, #ea8350, #f1996e to #ffbe9f light, Opal Foundry is a complementary 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
#9a3f00
#cb6733
#ea8350
#f1996e
#ffbe9f
The generator opens with #9a3f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.