Aurora palette
Halcyon Library
A quiet five-stop aurora arc with a confident middle — #004858 carries the weight and #6fb7cd carries the air, with #00728a, #308da6 and #539bb0 bridging in complementary formation. Built for hotel key cards and lobby signage in one system. The darkest and lightest stops clear AA as a text pair.
cyanaurorafive-stophigh-contrast
#004858
#00728a
#308da6
#539bb0
#6fb7cd
The generator opens with #004858 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.