Petrichor palette
Hyacinth Square
From #703300 ink through #a15725, #be7241, #c7855d to #e5a178 light, Hyacinth Square is a split-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.
orangepetrichorfive-stop
#703300
#a15725
#be7241
#c7855d
#e5a178
The generator opens with #703300 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.