Opera palette
Atlas Inn
Dark anchor, working middle, light release: #004575, #266da8, #4388c5, #5f97cc, #7ab4ea form a tetradic opera set with somewhere to stand at every lightness. Made for podcast cover art at sixty pixels square. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004575
#266da8
#4388c5
#5f97cc
#7ab4ea
The generator opens with #004575 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.