Nebula palette
Willow Library
Dark anchor, working middle, light release: #004d70, #0077aa, #3293c7, #56a1ce, #73beec form a analogous nebula set with somewhere to stand at every lightness. Made for museum exhibition graphics with long sightlines. The darkest and lightest stops clear AA for large text.
skynebulafive-stop
#004d70
#0077aa
#3293c7
#56a1ce
#73beec
The generator opens with #004d70 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.