Sumi palette
Obsidian Beacon
From #7a2b00 ink through #b84500, #d7612d, #de7950 to #fd956b light, Obsidian Beacon is a triadic progression that holds together at any size. Use it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#7a2b00
#b84500
#d7612d
#de7950
#fd956b
The generator opens with #7a2b00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.