Sumi palette
Pepper Atelier
Five sumi stops with room to breathe — #892000 grounds, #b84c31 and #d7684c do the talking, #de7f66 softens, #fd9b81 lifts. The monochromatic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#892000
#b84c31
#d7684c
#de7f66
#fd9b81
The generator opens with #892000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.