Monochrome palette
Rumpled Ridge
From #00476e ink through #0070a9, #308bc6, #539acd to #6fb7eb light, Rumpled Ridge is a analogous progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
skymonochromefive-stophigh-contrast
#00476e
#0070a9
#308bc6
#539acd
#6fb7eb
The generator opens with #00476e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.