Aurora Borealis

A palette drawn from the vivid, high-chroma end of the blue-green-violet arc: the colors that appear in long-exposure photographs of the northern lights, where saturation is compressed and amplified simultaneously. Cobalt-core-vivid provides the deepest, most intense blue anchor — the color of deep sky at zenith; teal-tone-vivid brings the electric cyan-teal of the aurora's most active bands; mint-core-vivid is the pale, almost-white-green of the aurora's outer glow; violet-nocturne-clear introduces the deep purple-violet of atmospheric depth at the horizon; plum-radiant-clear adds the warm-violet note that appears when the aurora's reds and blues overlap. Together, these five create a palette of extraordinary chromatic intensity that functions best on dark backgrounds — each color carries maximum luminosity against near-black, and the palette loses its celestial character on white.

This palette is designed for dark-background use only — on white or light backgrounds the vivid chroma reads as harsh rather than luminous. Use cobalt-core-vivid and teal-tone-vivid as the dominant hues; reserve plum-radiant-clear and violet-nocturne-clear as accent colors appearing in small quantities. Mint-core-vivid is the palette's lightest and most ethereal entry — it works as a text highlight or glow effect against dark surfaces. For typography, use pure white or the lightest palette entry (mint-core-vivid) for body text, never dark text colors. The palette pairs well with linear gradients between adjacent hues (cobalt to teal, violet to plum) to suggest the sweep and movement of the aurora itself.