Sumi palette
Sumac Delta
From #b5356e ink through #cd4c82, #009781, #ed699d to #00b69c light, Sumac Delta is a triadic progression that holds together at any size. Use it for book covers that read at thumbnail size.
pinksumifive-stop
#b5356e
#cd4c82
#009781
#ed699d
#00b69c
The generator opens with #b5356e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.