Sumi palette
Silvery Cabin
Silvery Cabin runs #ac3b14 through #d96a48, #f88663, #ff9d7f to #ffc9b9 in five measured steps, the tetradic structure keeping every neighbor honest. Reach for it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#ac3b14
#d96a48
#f88663
#ff9d7f
#ffc9b9
The generator opens with #ac3b14 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.