Sumi palette
Oyster Cabin
Dark anchor, working middle, light release: #6a2e00, #a24c0a, #c0672f, #c87b4f, #e6976a form a complementary sumi set with somewhere to stand at every lightness. Made for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#6a2e00
#a24c0a
#c0672f
#c87b4f
#e6976a
The generator opens with #6a2e00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.