Acidic Pang Lime

Latin acidus, sour — adjectival suffix -ic, sharing root with acetic and acerbic. As a color modifier, acidic implies a saturated-and-citric-and-sour quality, the bright color of lime-zest-and-pickled-lime citrus-fruit pulp surface. Sits at the bright-and-cool end of the grid, parallel to acid and electric in usage.

Middle English pang, sudden-sharp-pain. As a color modifier, pang implies a sudden-and-piercing-and-sharp quality, the visual register of Petrarchan-sonnet-and-courtly-love-pang hand-sudden-and-piercing-and-sharp Petrarchan-sonnet-and-courtly-love-and-troubadour-lyric panged-and-sudden-and-piercing-and-sharp surfaces under Petrarchan-sonnet-and-courtly-love-and-troubadour-lyric pierced-and-yearning-and-stricken candlelit-poet-light. Sits at the modifier-and-mood end of the grid, parallel to ache and throb in usage.

Citrus aurantiifolia and its key-lime cousin — small, intensely sour green citrus carried by Arab traders from Southeast Asia to the Mediterranean by the eleventh century, then to the Caribbean with Columbus. The color refers to the skin of a fully ripe Persian lime: a saturated, slightly yellow-shifted green with the matte finish of citrus rind. Cooler than chartreuse, sharper than sage, with the same chlorophyll the fruit loses if left to ripen to yellow.