Opera palette
Emerald Depot
From #004e79 ink through #0077b5, #3293d3, #56a2d9 to #73bef7 light, Emerald Depot is a split-complementary progression that holds together at any size. Use it for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#004e79
#0077b5
#3293d3
#56a2d9
#73bef7
The generator opens with #004e79 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.