Defined Terra Lagoon

Latin dēfīnīre, to set bounds — past-participle of define. As a color modifier, defined implies a clear-and-edge-distinct-and-precise quality where the hue carries the visual register of sharp-bounded-and-clearly-delimited surface. Sits at the crisp-and-clear end of the grid, parallel to crisp and sharp in usage.

Latin terra, earth-or-land. As a color modifier, terra implies a earth-globe-and-loamy-and-grounded quality, the visual register of Pale-Blue-Dot-and-Apollo-Terra hand-earth-globe-and-loamy-and-grounded Pale-Blue-Dot-and-Apollo-and-Earthrise terra-and-earth-globe-and-loamy-and-grounded surfaces under Pale-Blue-Dot-and-Apollo-and-Earthrise lunar-orbit-and-deep-space earth-globe-light. Sits at the modifier-and-cosmic end of the grid, parallel to luna and sol 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.