Opera palette
Plum Gallery
Dark anchor, working middle, light release: #004b6e, #0075a7, #3190c4, #559fcb, #71bce9 form a monochromatic opera set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004b6e
#0075a7
#3190c4
#559fcb
#71bce9
The generator opens with #004b6e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.