Sumi palette
Ashen Heath
Five sumi stops with room to breathe — #af062d grounds, #c82d41 and #008187 do the talking, #e84e5b softens, #009fa6 lifts. The tetradic bones keep it coherent across national-park posters with layered mountain silhouettes.
redsumifive-stop
#af062d
#c82d41
#008187
#e84e5b
#009fa6
The generator opens with #af062d as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.