Antiseptic Wraith Lagoon

Greek anti- (against) plus sēptikós (putrefying) — adjectival suffix -ic. As a color modifier, antiseptic implies a clear-and-disinfected-and-clinical quality, the crisp color of medical-laboratory and operating-theater hand-scrub-and-sanitizer surfaces. Sits at the crisp-and-clean end of the grid, parallel to sterile and sanitary in usage.

Scots wraith, ghost-or-apparition. As a color modifier, wraith implies a ghostly-and-pale-and-apparitional quality, the visual register of Highland-Scots-and-Border-Ballad-wraith hand-ghostly-and-pale-and-apparitional Highland-Scots-and-Border-Ballad-and-Hebridean wraith-and-ghostly-and-pale surfaces under Highland-Scots-and-Border-Ballad-and-Hebridean moonlit-and-mist-shrouded-and-pale graveyard-and-tarn-light. Sits at the modifier-and-mood end of the grid, parallel to pall and gloam in usage.

A shallow body of saltwater partially or fully enclosed by a barrier — coral atoll lagoons in the Pacific, Venice's Laguna Veneta, the Florida Keys' backcountry. The color refers to the average reflectance of a calm tropical lagoon at midday: a saturated, slightly muted blue-green with the optical clarity of shallow water over white sand. Brighter than reef, cooler than aquamarine, with the postcard weight of a Pacific atoll seen from above.