Blue Hour palette
Breezy Library
From #9c63a6 ink through #b26533, #0087b5, #518d48 to #36a3d2 light, Breezy Library is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size.
orangebluehourfive-stop
#9c63a6
#b26533
#0087b5
#518d48
#36a3d2
The generator opens with #9c63a6 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.