Nebula palette
Opal Plaza
Dark anchor, working middle, light release: #2354a0, #4e7eca, #689ae8, #7faaee, #a4c7ff form a split-complementary nebula set with somewhere to stand at every lightness. Made for podcast cover art at sixty pixels square. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#2354a0
#4e7eca
#689ae8
#7faaee
#a4c7ff
The generator opens with #2354a0 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.