Effective Rough Lagoon

Latin effectīvus, productive — adjectival suffix -ive. As a color modifier, effective implies a clear-and-purpose-achieving quality where the hue carries the visual register of successful-task-completion design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and useful in usage.

Old English rūh, rough. As a color modifier, rough implies an unfinished-and-coarse quality, the visual register of unfinished-stone-and-burlap hand-quarried-and-unprocessed coarse-and-unfinished-textile-and-stone hand-quarried-and-coarse surfaces under hand-quarried-and-unfinished workshop-light. Sits at the modifier-and-texture end of the grid, parallel to hewn and bark 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.