Industrial palette
Ebony Marsh
From #004d5b ink through #00788c, #3293a8, #55a1b2 to #72bdcf light, Ebony Marsh is a monochromatic 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.
cyanindustrialfive-stop
#004d5b
#00788c
#3293a8
#55a1b2
#72bdcf
The generator opens with #004d5b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.