Sumi palette
Polar Mesa
From #89002f ink through #b64056, #d55c70, #dc7582 to #fc909e light, Polar Mesa is a analogous 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.
redsumifive-stophigh-contrast
#89002f
#b64056
#d55c70
#dc7582
#fc909e
The generator opens with #89002f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.