Sumi palette
Oat Prairie
From #a73f00 ink through #e65d0d, #ff8048, #ff9c73 to #ffc8b2 light, Oat Prairie is a triadic progression that holds together at any size. Use it for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#a73f00
#e65d0d
#ff8048
#ff9c73
#ffc8b2
The generator opens with #a73f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.