Aurora palette
Leaden Library
Dark anchor, working middle, light release: #004d39, #00795c, #319476, #54a186, #70bda2 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 for large text.
tealaurorafive-stop
#004d39
#00795c
#319476
#54a186
#70bda2
The generator opens with #004d39 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.