Sumi palette
Flannel Pier
From #6c2600 ink through #9a4d2b, #b76845, #c07b5e to #de9779 light, Flannel Pier is a split-complementary 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
#6c2600
#9a4d2b
#b76845
#c07b5e
#de9779
The generator opens with #6c2600 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.