Sumi palette
Poppy Mill
From #910030 ink through #c93152, #e9516c, #ef6e80 to #ff97a2 light, Poppy Mill is a tetradic 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 as a text pair.
redsumifive-stophigh-contrast
#910030
#c93152
#e9516c
#ef6e80
#ff97a2
The generator opens with #910030 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.