Monochrome palette
Plum Plaza
Five monochrome stops with room to breathe — #004f79 grounds, #0078b5 and #3294d3 do the talking, #57a3d9 softens, #73bff7 lifts. The analogous bones keep it coherent across national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skymonochromefive-stop
#004f79
#0078b5
#3294d3
#57a3d9
#73bff7
The generator opens with #004f79 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.