Monochrome palette
Plum Lane
Dark anchor, working middle, light release: #00505e, #007b90, #3396ac, #57a4b6, #74c1d3 form a tetradic monochrome set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
cyanmonochromefive-stop
#00505e
#007b90
#3396ac
#57a4b6
#74c1d3
The generator opens with #00505e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.