Retro palette
Tranquil Atelier
Five stops tuned to sit together without fighting — #003e7b ink anchors the set, #6dadfa opens it up, and #0f65ba, #3381d8, #5291dc cross the middle in a split-complementary arrangement. Tranquil Atelier suits event posters that compete with a wall of other posters. The darkest and lightest stops clear AA as a text pair.
skyretrofive-stophigh-contrast
#003e7b
#0f65ba
#3381d8
#5291dc
#6dadfa
The generator opens with #003e7b as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.