Retro palette
Halcyon Deck
Dark anchor, working middle, light release: #8d7ec7, #678acd, #3796c2, #82a6eb, #57b2df form a split-complementary retro set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines.
skyretrofive-stop
#8d7ec7
#678acd
#3796c2
#82a6eb
#57b2df
The generator opens with #8d7ec7 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.