Sumi palette
Heather Delta
From #883000 ink through #bf5220, #de6e3f, #e5855e to #ffa480 light, Heather Delta is a complementary progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
orangesumifive-stop
#883000
#bf5220
#de6e3f
#e5855e
#ffa480
The generator opens with #883000 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.