Useful Bliss Turquoise

Latin ūsus, use — adjectival suffix -ful. As a color modifier, useful implies a clear-and-purpose-serving quality where the hue carries the visual register of helpful-and-supporting design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and serviceable in usage.

Old English blīths, joy-or-delight. As a color modifier, bliss implies a deep-joy-and-rapture-and-contentment quality, the visual register of Beatific-Vision-and-Elysian-Field-bliss hand-deep-joy-and-rapture-and-contentment Beatific-Vision-and-Elysian-Field-and-paradise-meadow blissed-and-deep-joy-and-rapture surfaces under Beatific-Vision-and-Elysian-Field-and-paradise-meadow heavenly-and-rapturous-and-blessed paradise-light. Sits at the modifier-and-mood end of the grid, parallel to joy and mirth in usage.

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.