Blue Hour palette
Granite Reef
From #005363 ink through #007e96, #349ab2, #58a7bc to #75c4d9 light, Granite Reef is a tetradic 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.
cyanbluehourfive-stop
#005363
#007e96
#349ab2
#58a7bc
#75c4d9
The generator opens with #005363 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.