Crimson & Navy & Violet

Navy (very deep, dark — the Arctic night sky below the aurora display) and Violet (deep, vivid, electric — the aurora corona at the highest altitude — the most rarely seen and the most electrically charged aurora color) create the most dramatically nocturnal and the most electrically charged cool pair — the absolute dark sky and the electric violet crown. Against Crimson's passionate solar-wind plasma warm, this creates the most specifically Aurora Borealis and the most scientifically accurate aurora palette.

The palette is the visual world of the Aurora Borealis (the Northern Lights — Aurora borealis — from Latin: Aurora — Roman goddess of the dawn + borealis — 'northern' — the naturally occurring light display in the Earth's sky — predominantly seen in high-latitude regions around the Arctic and Antarctic — produced by the collision of charged particles from the sun — the solar wind — with atoms and molecules in the Earth's upper atmosphere). The aurora palette: the deep vivid crimson of the lower-altitude aurora (the specific vivid crimson-to-red of the lower-altitude — below approximately 90 km — aurora emission, produced when high-energy particles from the sun collide with oxygen atoms at the lowest auroral altitudes, producing the 630 nm red emission line of atomic oxygen — the most rare and the most dramatically crimson aurora color, typically seen only during the most intense geomagnetic storms); the very deep dark navy of the Arctic night sky (the specific very deep, almost absolute dark navy of the Arctic night sky between aurora curtains — the most perfectly dark and the most star-filled sky on Earth, seen from the most northerly inhabited latitudes — Iceland, Tromsø, Svalbard, Yellowknife, Fairbanks); and the deep vivid electric violet of the highest-altitude aurora corona (the specific deep, vivid, electric violet of the aurora corona — the most spectacular of all aurora forms — produced when the most intense particle flux energizes the very highest auroral zone — above approximately 200-300 km — where the most energetically excited nitrogen molecules emit the characteristic deep violet-to-purple 391 nm emission line).