Sumi palette
Tidal Prairie
Dark anchor, working middle, light release: #ac1042, #da4e6a, #fa6b84, #ff8799, #ffb8c0 form a tetradic 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
#ac1042
#da4e6a
#fa6b84
#ff8799
#ffb8c0
The generator opens with #ac1042 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.