Retro palette
Frosty Boulevard
Five stops tuned to sit together without fighting — #12399c ink anchors the set, #89afff opens it up, and #3a65c6, #5381e4, #6a92e8 cross the middle in a tetradic arrangement. Frosty Boulevard suits book covers that read at thumbnail size. The darkest and lightest stops clear AA as a text pair.
skyretrofive-stophigh-contrast
#12399c
#3a65c6
#5381e4
#6a92e8
#89afff
The generator opens with #12399c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.