Sumi palette
Sandy Lighthouse
From #b5542a ink through #6a67c2, #008a5e, #d36f46 to #16a975 light, Sandy Lighthouse is a split-complementary progression that holds together at any size. Use it for book covers that read at thumbnail size.
bluesumifive-stop
#b5542a
#6a67c2
#008a5e
#d36f46
#16a975
The generator opens with #b5542a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.