Monochrome palette
Marble Square
From #004d54 ink through #007882, #32939d, #55a1a9 to #72bdc6 light, Marble Square is a split-complementary progression that holds together at any size. Use it for event posters that compete with a wall of other posters. The darkest and lightest stops clear AA for large text.
cyanmonochromefive-stop
#004d54
#007882
#32939d
#55a1a9
#72bdc6
The generator opens with #004d54 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.