Autumn palette
Spruce Foundry
From #9d113c ink through #b52f4f, #007976, #d44d68 to #009793 light, Spruce Foundry is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
redautumnfive-stop
#9d113c
#b52f4f
#007976
#d44d68
#009793
The generator opens with #9d113c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.