Aurora palette
Butter Plaza
Dark anchor, working middle, light release: #3238a0, #5564ca, #6e80e9, #8092ec, #9eb0ff form a tetradic aurora set with somewhere to stand at every lightness. Made for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
blueaurorafive-stophigh-contrast
#3238a0
#5564ca
#6e80e9
#8092ec
#9eb0ff
The generator opens with #3238a0 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.