Sumi palette
Foggy Outpost
From #9b282b ink through #b33f3e, #007b84, #d25b58 to #0098a4 light, Foggy Outpost is a tetradic progression that holds together at any size. Use it for book covers that read at thumbnail size.
redsumifive-stop
#9b282b
#b33f3e
#007b84
#d25b58
#0098a4
The generator opens with #9b282b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.