Sumi palette
Midnight Fen
Dark anchor, working middle, light release: #842a38, #b0565f, #ce7179, #d7868c, #f5a2a7 form a split-complementary sumi set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#842a38
#b0565f
#ce7179
#d7868c
#f5a2a7
The generator opens with #842a38 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.