Retro palette
Polar Mill
From #9a3747 ink through #c6646f, #e57f8a, #ed959d to #ffb9be light, Polar Mill 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.
redretrofive-stop
#9a3747
#c6646f
#e57f8a
#ed959d
#ffb9be
The generator opens with #9a3747 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.