Aglow Pixie Sky

Old English on-glōwan, on-glow — sharing root with glow and gleam. As a color modifier, aglow implies a saturated-and-lit-from-within quality, the bright color of fireplace-and-jack-o-lantern interior-glow-lit warm-light emission against ambient darkness. Sits at the bright-and-warm end of the grid, parallel to glowing and aflame in usage.

English Cornish piskie, small-mischievous-fairy. As a color modifier, pixie implies a small-mischievous-Cornish-Devon-fairy quality, the visual register of Cornish-and-Devon-pixie-folk hand-small-mischievous-Cornish-Devon-fairy Cornish-and-Devon-pixie-folk-and-moorland-fairy pixie-and-small-mischievous-fairy surfaces under Cornish-and-Devon-pixie-folk-and-moorland-fairy Bodmin-Moor-and-Dartmoor-stone-circle moorland-fairy-light. Sits at the modifier-and-myth end of the grid, parallel to sprite and gnome in usage.

The blue of a clear sky at noon — produced by Rayleigh scattering, the preferential dispersion of shorter wavelengths through atmospheric molecules. Air itself is colorless; the color we see is sunlight scattered toward our eyes by every cubic kilometer above. The reference shade is mid-latitude noon under a high pressure system: a clean, slightly green-shifted blue with the luminous depth of light scattered across an entire hemisphere of air.