Opera palette
Crimson Shrine
From #712c00 ink through #ad4800, #cb642c, #d37a4e to #f29669 light, Crimson Shrine is a tetradic 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 as a text pair.
orangeoperafive-stophigh-contrast
#712c00
#ad4800
#cb642c
#d37a4e
#f29669
The generator opens with #712c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.