Sumi palette
Nightfall Heath
From #be4553 ink through #ba5000, #9a6a00, #dd616d to #d96c2e light, Nightfall Heath is a split-complementary progression that holds together at any size. Use it for hotel key cards and lobby signage in one system.
redsumifive-stop
#be4553
#ba5000
#9a6a00
#dd616d
#d96c2e
The generator opens with #be4553 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.