Acid palette
Foxglove Granary
From #005757 ink through #008384, #359f9f, #5aacac to #77c9c9 light, Foxglove Granary is a analogous 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.
cyanacidfive-stop
#005757
#008384
#359f9f
#5aacac
#77c9c9
The generator opens with #005757 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.