Tucked Irish Sky

Old English tūcian, to torment / pull — past-participle of tuck. As a color modifier, tucked implies a clear-and-fitted-and-arranged quality where the hue carries the visual register of carefully-tucked-and-neatly-fitted shirt-into-trouser dress-attire. Sits at the crisp-and-finished end of the grid, parallel to trim and pressed in usage.

Old English Irisc, of-Ireland. As a color modifier, irish implies a Hibernian-and-peat quality, the visual register of Irish-Hibernian hand-built peat-and-stone-and-thatched cottage-and-pasture-and-bog surfaces under Hibernian-and-West-of-Ireland peat-bog-and-cottage atmospheric light. Sits at the modifier-and-cultural end of the grid, parallel to welsh and celtic 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.