Opera palette
Yuzu Bazaar
From #00436e ink through #2d6b9c, #4986b9, #6295c1 to #7db1de light, Yuzu Bazaar is a analogous 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
#00436e
#2d6b9c
#4986b9
#6295c1
#7db1de
The generator opens with #00436e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.