Sumi palette
Ebony Brook
Dark anchor, working middle, light release: #a93648, #d66571, #f5818c, #fd98a0, #ffc5c8 form a split-complementary sumi set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#a93648
#d66571
#f5818c
#fd98a0
#ffc5c8
The generator opens with #a93648 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.