Monochrome palette
Indigo Outpost
From #004878 ink through #0b70b5, #348cd3, #559bd8 to #72b8f6 light, Indigo Outpost is a complementary 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
#004878
#0b70b5
#348cd3
#559bd8
#72b8f6
The generator opens with #004878 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.