Opera palette
Muslin Delta
Dark anchor, working middle, light release: #00557e, #007fba, #349bd8, #5aaade, #77c7fc form a monochromatic opera set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#00557e
#007fba
#349bd8
#5aaade
#77c7fc
The generator opens with #00557e as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.