Monochrome palette
Smoky Parlor
From #0069aa ink through #0093ec, #50b0ff, #78c0ff to #b3dbff light, Smoky Parlor 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 for large text.
skymonochromefive-stop
#0069aa
#0093ec
#50b0ff
#78c0ff
#b3dbff
The generator opens with #0069aa as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.