Sumi palette
Indigo Fen
From #863300 ink through #bf5318, #de6f3a, #e5865b to #ffa57d light, Indigo Fen is a split-complementary progression that holds together at any size. Use it for restaurant branding that works on signage and receipts alike. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#863300
#bf5318
#de6f3a
#e5865b
#ffa57d
The generator opens with #863300 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.