Sumi palette
Cobalt Foundry
From #692c00 ink through #a34800, #c1632a, #c9784c to #e79467 light, Cobalt Foundry is a monochromatic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
orangesumifive-stophigh-contrast
#692c00
#a34800
#c1632a
#c9784c
#e79467
The generator opens with #692c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.