Acid palette
Crimson Heath
From #ad615f ink through #7c6fb0, #7b8035, #008b94 to #37a7b0 light, Crimson Heath is a analogous progression that holds together at any size. Use it for book covers that read at thumbnail size.
cyanacidfive-stop
#ad615f
#7c6fb0
#7b8035
#008b94
#37a7b0
The generator opens with #ad615f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.