Opera palette
Stone Foundry
From #004a75 ink through #0073b2, #318fd0, #549ed5 to #71baf4 light, Stone Foundry is a analogous progression that holds together at any size. Use it for dashboards where status colors must survive color-vision differences. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#004a75
#0073b2
#318fd0
#549ed5
#71baf4
The generator opens with #004a75 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.