Blue Hour palette
Zephyr Heath
Zephyr Heath runs #004657 through #00708a, #308ba6, #5299b0 to #6eb5cd in five measured steps, the analogous structure keeping every neighbor honest. Reach for it for newsletters where the header, links, and footers share one voice. The darkest and lightest stops clear AA as a text pair.
cyanbluehourfive-stophigh-contrast
#004657
#00708a
#308ba6
#5299b0
#6eb5cd
The generator opens with #004657 as the primary and the next two stops as secondary and accent — adjust, check contrast, and export tokens or CSS from there.