Opera palette
Cozy Cottage
From #873459 ink through #9e486d, #007c66, #bc6387 to #009a80 light, Cozy Cottage is a split-complementary progression that holds together at any size. Use it for book covers that read at thumbnail size.
pinkoperafive-stop
#873459
#9e486d
#007c66
#bc6387
#009a80
The generator opens with #873459 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.