Retro palette
Perennial Kiln
From #991d31 ink through #b13644, #00787b, #d0535d to #009599 light, Perennial Kiln is a analogous progression that holds together at any size. Use it for hotel key cards and lobby signage in one system.
redretrofive-stop
#991d31
#b13644
#00787b
#d0535d
#009599
The generator opens with #991d31 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.