Sumi palette
Poppy Alley
From #9f3247 ink through #b7485a, #008482, #d66474 to #00a2a0 light, Poppy Alley is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
redsumifive-stop
#9f3247
#b7485a
#008482
#d66474
#00a2a0
The generator opens with #9f3247 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.