Opera palette
Plum Canyon
From #005992 ink through #0082d2, #359ef1, #5caef5 to #90caff light, Plum Canyon is a analogous 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
#005992
#0082d2
#359ef1
#5caef5
#90caff
The generator opens with #005992 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.