Sumi palette
Opal Glade
Opal Glade runs #7a1e00 through #b23f1e, #d15b3b, #d87358 to #f78f73 in five measured steps, the complementary structure keeping every neighbor honest. Reach for it for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
redsumifive-stophigh-contrast
#7a1e00
#b23f1e
#d15b3b
#d87358
#f78f73
The generator opens with #7a1e00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.