Opera palette
Denim Reef
From #00547f ink through #157eb8, #3c9ad6, #5ea9dc to #7bc6fa light, Denim Reef is a triadic progression that holds together at any size. Use it for national-park posters with layered mountain silhouettes. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#00547f
#157eb8
#3c9ad6
#5ea9dc
#7bc6fa
The generator opens with #00547f as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.