Sumi palette
Opal Beacon
Dark anchor, working middle, light release: #7f2c00, #bd4600, #dc632d, #e37b51, #ff9971 form a monochromatic sumi set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#7f2c00
#bd4600
#dc632d
#e37b51
#ff9971
The generator opens with #7f2c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.