Sumi palette
Twilit Dune
From #b01539 ink through #de5162, #fe6e7c, #ff8d94 to #ffbdbf light, Twilit Dune is a split-complementary progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#b01539
#de5162
#fe6e7c
#ff8d94
#ffbdbf
The generator opens with #b01539 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.