Retro palette
Marble Library
Dark anchor, working middle, light release: #033897, #3264c1, #4c80df, #6391e3, #80adff form a split-complementary retro set with somewhere to stand at every lightness. Made for indie game interfaces with a strong day-night rhythm. The darkest and lightest stops clear AA as a text pair.
skyretrofive-stophigh-contrast
#033897
#3264c1
#4c80df
#6391e3
#80adff
The generator opens with #033897 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.