Buttoned Pillar Lagoon

Old French bouton, button — past-participle of button. As a color modifier, buttoned implies a clear-and-fastened-and-formal quality, the crisp color of Edwardian-period formal-attire fully-fastened-and-formally-dressed gentleman's-attire. Sits at the crisp-and-finished end of the grid, parallel to trim and pressed in usage.

Latin pīla, pillar. As a color modifier, pillar implies a vertical-load-bearing-and-monumental quality, the visual register of Roman-and-Greek-and-Egyptian-Pillar hand-cut Doric-and-Ionic-and-Corinthian-Egyptian column-and-pillar monumental-architecture surfaces under classical-pillar monumental-architecture light. Sits at the modifier-and-architecture end of the grid, parallel to column and plinth 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.