Monochrome palette
Peaty Brook
From #006c80 ink through #0099b4, #3bb5d1, #65c3db to #83e1f9 light, Peaty Brook 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.
cyanmonochromefive-stop
#006c80
#0099b4
#3bb5d1
#65c3db
#83e1f9
The generator opens with #006c80 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.