Opera palette
Mineral Canyon
From #00446c ink through #006ca8, #2f87c5, #5196cc to #6db3e9 light, Mineral Canyon 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 as a text pair.
skyoperafive-stophigh-contrast
#00446c
#006ca8
#2f87c5
#5196cc
#6db3e9
The generator opens with #00446c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.