Monochrome palette
Umber Abbey
Five stops tuned to sit together without fighting — #004d71 ink anchors the set, #73beed opens it up, and #0077ab, #3293c8, #56a1cf cross the middle in a split-complementary arrangement. Umber Abbey suits hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
skymonochromefive-stop
#004d71
#0077ab
#3293c8
#56a1cf
#73beed
The generator opens with #004d71 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.