Throughout literature, "intense purple" is employed to evoke vivid imagery and emotional depth across diverse contexts. In scientific and technical descriptions, it denotes precise hues—such as in chemical reactions where substances acquire an intense purple-red or an intense purple-brown coloration [1, 2]—emphasizing not only color but also the transformative nature of the substances involved. In depictions of nature, the color transforms ordinary subjects into objects of wonder: an overgrown aster-like iron-weed bursts forth in an intense purple-blue, offering a regal profusion of flowers [3, 4], while a brilliant autumnal flower surprises with its unfamiliar intense purple [5]. In more poetic passages, the color further intensifies the narrative ambience—a light of intense purple darts forth as if charged with energy [6], a glow extends several feet from its surface [7], and even the nocturnal sky itself is rendered with "intense purple deeps" that make the stars burn like opals [8]. This multifaceted use of intense purple serves to enhance the sensory experience, whether through the clarity of scientific description or the allure of imaginative metaphor.
- It melts at 82°, gives an intense purple-red, with sulphuric acid, and colours Fröhde’s reagent reddish-violet.
— from Poisons, Their Effects and Detection
A Manual for the Use of Analytical Chemists and Experts by Alexander Wynter Blyth
- It precipitates copper and lead acetates, and with ammoniacal cupric sulphate it gives an intense purple-brown coloration.
— from A Text-book of Tanning
A treatise on the conversion of skins into leather, both practical and theoretical. by H. R. (Henry Richardson) Procter
- Iron-weed, which looks like an overgrown aster, has the same intense purple-blue color, and a royal profusion of flowers.
— from The Writings of John Burroughs — Volume 05: Pepacton by John Burroughs
- Iron-weed, which looks like an overgrown aster, has the same intense purple-blue color, and a royal profusion of flowers.
— from A Year in the Fields by John Burroughs
- I asked one farmer the name of a brilliant autumnal flower whose intense purple was then unfamiliar to me—the Devil's-bit.
— from Old-Time Gardens, Newly Set Forth by Alice Morse Earle
- The cylinder in his hand darted forth a needle-like shaft—a light of intense purple.
— from Tarrano the Conqueror by Ray Cummings
- The intense purple glow extended several feet from its surface.
— from Astounding Stories, July, 1931 by Various
- The night was still, moonless; the stars burned like opals in the intense purple deeps of the sky.
— from The Lay Anthony: A Romance by Joseph Hergesheimer