Sumi palette
Foxglove Garret
Five sumi stops with room to breathe — #882e3d grounds, #9f4350 and #007574 do the talking, #bd5e69 softens, #009291 lifts. The analogous bones keep it coherent across book covers that read at thumbnail size.
redsumifive-stop
#882e3d
#9f4350
#007574
#bd5e69
#009291
The generator opens with #882e3d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.