Prairie palette
Tidal Courtyard
From #005563 ink through #008195, #349db1, #5aaabc to #77c7d9 light, Tidal Courtyard is a tetradic 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.
cyanprairiefive-stop
#005563
#008195
#349db1
#5aaabc
#77c7d9
The generator opens with #005563 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.