Monochrome palette
Crimson Grove
From #004d5a ink through #00788b, #3293a7, #55a1b1 to #72bdce light, Crimson Grove is a tetradic 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.
cyanmonochromefive-stop
#004d5a
#00788b
#3293a7
#55a1b1
#72bdce
The generator opens with #004d5a as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.