Jewel palette
Kiln Crater
Dark anchor, working middle, light release: #00428c, #2f6bbb, #4a87d9, #6497de, #7fb3fc form a tetradic jewel set with somewhere to stand at every lightness. Made for music artwork with loud darks and a glowing accent. The darkest and lightest stops clear AA as a text pair.
skyjewelfive-stophigh-contrast
#00428c
#2f6bbb
#4a87d9
#6497de
#7fb3fc
The generator opens with #00428c as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.