Opera palette
Teal Cellar
From #004870 ink through #0071ab, #308cc8, #539bcf to #70b8ed light, Teal Cellar is a triadic progression that holds together at any size. Use it for flower-shop wraps and delivery van livery together. The darkest and lightest stops clear AA as a text pair.
skyoperafive-stophigh-contrast
#004870
#0071ab
#308cc8
#539bcf
#70b8ed
The generator opens with #004870 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.