Retro palette
Sienna Delta
Five retro stops with room to breathe — #8d0014 grounds, #bd3e3d and #dc5b57 do the talking, #e3746e softens, #ff938c lifts. The split-complementary bones keep it coherent across hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
redretrofive-stophigh-contrast
#8d0014
#bd3e3d
#dc5b57
#e3746e
#ff938c
The generator opens with #8d0014 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.