Sumi palette
Mercurial Lodge
Five sumi stops with room to breathe — #ab1f00 grounds, #dc5238 and #fc6f54 do the talking, #ff8c74 softens, #ffbaab lifts. The tetradic bones keep it coherent across book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#ab1f00
#dc5238
#fc6f54
#ff8c74
#ffbaab
The generator opens with #ab1f00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.