Nebula palette
Pale Lane
Dark anchor, working middle, light release: #007172, #009fa1, #3cbcbd, #67c9ca, #85e6e7 form a tetradic nebula set with somewhere to stand at every lightness. Made for book covers that read at thumbnail size. The darkest and lightest stops clear AA for large text.
cyannebulafive-stop
#007172
#009fa1
#3cbcbd
#67c9ca
#85e6e7
The generator opens with #007172 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.