Sumi palette
Lupine Lighthouse
From #c03f41 ink through #3d6cd2, #208925, #e05c5b to #42a543 light, Lupine Lighthouse is a tetradic progression that holds together at any size. Use it for hotel key cards and lobby signage in one system.
redsumifive-stop
#c03f41
#3d6cd2
#208925
#e05c5b
#42a543
The generator opens with #c03f41 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.