Sumi palette
Smoky Plaza
Dark anchor, working middle, light release: #b74900, #1e70c9, #008180, #d6652d, #009f9e form a triadic sumi set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size.
orangesumifive-stop
#b74900
#1e70c9
#008180
#d6652d
#009f9e
The generator opens with #b74900 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.