Monochrome palette
Walnut Dune
Dark anchor, working middle, light release: #005081, #3479af, #5094cc, #6ba4d4, #87c0f2 form a split-complementary monochrome set with somewhere to stand at every lightness. Made for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skymonochromefive-stop
#005081
#3479af
#5094cc
#6ba4d4
#87c0f2
The generator opens with #005081 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.