Sumi palette
Lantern Brook
From #843247 ink through #9b465a, #00766f, #b96074 to #00948b light, Lantern Brook is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system.
pinksumifive-stop
#843247
#9b465a
#00766f
#b96074
#00948b
The generator opens with #843247 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.