Sonorous Comet Royal

Latin sonōrus, resounding — derived from sonus (sound). As a color modifier, sonorous implies a saturated-and-richly-vibrating quality where the hue carries the deep-resonance visual register of a cathedral-organ-pipe low-note. Sits at the bold-and-resonant end of the grid, parallel to resonant and deep in usage.

Greek κομήτης, long-haired-or-tailed-star. As a color modifier, comet implies an icy-and-tailed-and-streaked quality, the visual register of Halley-and-Hale-Bopp-comet hand-icy-and-tailed-and-streaked Halley-and-Hale-Bopp-and-Encke-comet comet-and-icy-and-tailed-and-streaked surfaces under Halley-and-Hale-Bopp-and-Encke-comet sun-grazing-and-coma-and-ion-tail outer-system-arc-light. Sits at the modifier-and-cosmic end of the grid, parallel to meteor and nebula in usage.

The blue of European royal court dress and regalia from the late seventeenth century forward — the color of British peers' robes, French royal sashes, the lining of the crown-jewel cases. The color refers to a saturated, slightly violet-shifted blue with the matte finish of velvet or melton wool dyed to maximum intensity: deeper than cornflower, warmer than ultramarine, with the heraldic weight of a color reserved for monarchs and the official Crown.