Sumi palette
Obsidian Glade
Obsidian Glade runs #9f2100 through #cf5136, #ef6e52, #f5866d to #ffb09d in five measured steps, the analogous structure keeping every neighbor honest. Reach for it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
redsumifive-stop
#9f2100
#cf5136
#ef6e52
#f5866d
#ffb09d
The generator opens with #9f2100 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.