Symmetrical Luna Peacock

Greek symmetría, due-proportion — adjectival suffix -al, derived from sym-metron (with-measure). As a color modifier, symmetrical implies a clear-and-balanced-and-mirrored quality where the hue carries the visual register of bilateral-or-radial proportional symmetry. Sits at the crisp-and-balanced end of the grid, parallel to balanced and aligned in usage.

Latin luna, moon. As a color modifier, luna implies a moonlit-and-silver-and-pale-night quality, the visual register of full-moon-and-Selene-Diana-Luna hand-moonlit-and-silver-and-pale-night full-moon-and-Selene-Diana-Luna-and-Mare-Tranquillitatis luna-and-moonlit-and-silver-and-pale-night surfaces under full-moon-and-Selene-Diana-Luna-and-Mare-Tranquillitatis night-meadow-and-tarn-and-monastic-cloister silver-night-light. Sits at the modifier-and-cosmic end of the grid, parallel to sol and terra in usage.

Pavo cristatus, the Indian peafowl whose male displays the most elaborate sexual ornament in birds — a fan of two-meter eyespotted tail feathers in iridescent blue-green. The color is structural, not pigmented: created by interference patterns in the feather barbules. Peacock blue refers to the dominant body color: a saturated, slightly muted teal-blue with the optical depth of structural color. Cooler than persian, warmer than sapphire.