Opera palette
Twilit Dock
From #00426f ink through #2c6a9d, #4885ba, #6194c1 to #7cb0df light, Twilit Dock is a analogous progression that holds together at any size. Use it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#00426f
#2c6a9d
#4885ba
#6194c1
#7cb0df
The generator opens with #00426f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.