Blue Hour palette
Firstlight Kiln
Dark anchor, working middle, light release: #005165, #007c99, #3397b5, #58a5bf, #74c2dc form a analogous blue hour set with somewhere to stand at every lightness. Made for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA for large text.
cyanbluehourfive-stop
#005165
#007c99
#3397b5
#58a5bf
#74c2dc
The generator opens with #005165 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.