Opera palette
Obsidian Atelier
From #ad2c00 ink through #c8411c, #00849b, #e85f3c to #00a2bd light, Obsidian Atelier is a split-complementary progression that holds together at any size. Use it for event posters that compete with a wall of other posters.
redoperafive-stop
#ad2c00
#c8411c
#00849b
#e85f3c
#00a2bd
The generator opens with #ad2c00 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.