Opera palette
Maroon Ridge
Five stops tuned to sit together without fighting — #004666 ink anchors the set, #6eb5e0 opens it up, and #006f9e, #308abb, #5299c2 cross the middle in a analogous arrangement. Maroon Ridge suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004666
#006f9e
#308abb
#5299c2
#6eb5e0
The generator opens with #004666 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.