Monochrome palette
Mineral Lodge
From #004859 ink through #00728b, #308da7, #539bb1 to #6fb7ce light, Mineral Lodge is a analogous progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA as a text pair.
cyanmonochromefive-stophigh-contrast
#004859
#00728b
#308da7
#539bb1
#6fb7ce
The generator opens with #004859 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.