Monochrome palette
Sumac Archive
Dark anchor, working middle, light release: #005d6e, #0089a1, #36a5bd, #5eb3c8, #7bd0e5 form a triadic monochrome set with somewhere to stand at every lightness. Made for packaging that photographs well under harsh retail light. The darkest and lightest stops clear AA for large text.
cyanmonochromefive-stop
#005d6e
#0089a1
#36a5bd
#5eb3c8
#7bd0e5
The generator opens with #005d6e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.