Sumi palette
Mahogany Pier
From #b8324f ink through #007795, #007f58, #d85068 to #009e6e light, Mahogany Pier is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system.
redsumifive-stop
#b8324f
#007795
#007f58
#d85068
#009e6e
The generator opens with #b8324f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.