Sky blue
colour of the unclouded sky at noon reflecting off a metallic surface
Sky blue refers to a collection of shades comparable to that of a clear daytime sky. Typically it is a shade of cyan or light teal, though some iterations are closer to light azure or light blue. The term (as "sky blew") is attested from 1681. A 1585 translation of Nicolas de Nicolay's 1576 Les navigations, peregrinations et voyages faicts en la Turquie includes "the tulbant [turban] of the merchant must be skie coloured".
Displayed at right is the web colour sky blue.
Variations
Celeste
Celeste (Spanish: [θeˈleste, se-], Italian: [tʃeˈlɛste], English: ) is the colloquial name for the pale turquoise blue colour. The same word, meaning "of the sky", is used in Spanish, Portuguese and Italian for the colour. Etymologically, it is derived by Latin term caelestis, that means del cielo in Italian. There are two "conventional" colours denominated celeste, according to the colour models. One is the pure Celeste, (HEX#B2FFFF; RGB 178,255,255) which may be referred as the "true" celeste as it is traditionally or officially understood; in English, it may also be referred to as Italian sky blue (blu cielo italiano) and Bianchi Green, referring to Bianchi, the famous Italian company for bikes, the first in the history of vehicles, whose colour is characteristic.
Begin with the source’s own compact description: “Sky blue” is colour of the unclouded sky at noon reflecting off a metallic surface. The dossier treats that line as a proposition to test through blue, colour and unclouded, not as a finished interpretation.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 15, 2026. The linked authority identifier is Q373160. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1681, 1585 and 1576.
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This entry incorporates text from “Sky blue” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.