Opera palette
Spruce Crater
From #00577b ink through #0082b4, #359ed1, #5bacd9 to #78c9f7 light, Spruce Crater is a split-complementary progression that holds together at any size. Use it for packaging that photographs well under harsh retail light. The darkest and lightest stops clear AA for large text.
skyoperafive-stop
#00577b
#0082b4
#359ed1
#5bacd9
#78c9f7
The generator opens with #00577b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.