Opera palette
Halcyon Crater
Dark anchor, working middle, light release: #006293, #378cc3, #55a8e1, #73b7e8, #98d3ff form a monochromatic opera set with somewhere to stand at every lightness. Made for wellness apps where the interface must feel calm, not clinical. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#006293
#378cc3
#55a8e1
#73b7e8
#98d3ff
The generator opens with #006293 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.