Inviting Blaze Sky

Latin invītāre, to invite — present-participle of invite. As a color modifier, inviting implies a clear-and-cordial-and-encouraging quality where the hue carries the visual register of warm-inviting-and-encouraging entrance-foyer color tone. Sits at the crisp-and-cheerful end of the grid, parallel to welcoming and hospitable in usage.

Old English blæse, torch-or-flame. As a color modifier, blaze implies a roaring-and-bright-and-spreading-flame quality, the visual register of bonfire-and-Yule-log-blaze hand-roaring-and-bright-and-spreading-flame bonfire-and-Yule-log-and-hearth-fire blazed-and-roaring-and-bright-and-spreading surfaces under bonfire-and-Yule-log-and-hearth-fire roaring-and-bright-and-spreading midwinter-and-bonfire-night-light. Sits at the modifier-and-mood end of the grid, parallel to flare and spark 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.