Noir palette
Tidal Square
From #840037 ink through #bd2a5a, #dd4a74, #e36785 to #ff87a2 light, Tidal 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 as a text pair.
pinknoirfive-stophigh-contrast
#840037
#bd2a5a
#dd4a74
#e36785
#ff87a2
The generator opens with #840037 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.