Monochrome palette
Tawny Archive
Dark anchor, working middle, light release: #00638a, #008ec5, #38aae3, #61b9ea, #8cd5ff form a tetradic 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
#00638a
#008ec5
#38aae3
#61b9ea
#8cd5ff
The generator opens with #00638a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.