Violet is closely associated with purple and the history is a fascinating one that begins in Tyre, Lebanon with the legendary story of Heracles, the philosopher. It is said that Heracles was walking with his dog on the beach in Tyre when he noticed a purple stain on his dog’s mouth. It transpires this purple had come from the Murex sea snail which secretes a purple dye. After this discovery, Tyrian Purple became a dye used to colour ceremonial robes. It didn’t fade easily and took thousands of snails to dye just one garment, so it was very expensive – not to mention time consuming – to produce and became known as a colour of luxury and power.

https://www.basf.com/us/documents/en/general-business-topics/pigments/industries/plastics/Colors-and-Effects_PSG-Pigment-preparations-Polyolefins.pdf. Search in Google ScholarLater in this colour story, in 1856, a new purple would be found, again accidentally, this time by William Henry Perkins at the young age of 18. Perkins had a makeshift laboratory in the attic of his family home where he was searching for a synthetic form of quinine for the treatment of malaria. One day he noticed a by-product of his experiments that produced an intense purple, and the colour Mauve, a pale tone of violet, was invented. Perkins went on to set up a very lucrative business of synthetic purple dye for clothes, which previously had be only possible with expensive natural dyes. Perkins’ discovery at the start of the Industrial Revolution opened the floodgates to many other synthetic colours. Hunger K. The effect of crystal structure on color application properties of organic pigments. Rev Prog Color. 1999;29:71–84. Search in Google Scholar N2 - This chapter provides an overview of the structural and synthetic chemistry, and the industrial applications, of dioxazine pigments, a small group of high performance organic pigments. The color violet (or purple) has frequently assumed a prominent position in history, on account of its rarity and cost. The natural colorant Tyrian purple and the first synthetic textile dye, Mauveine, are prime examples of this unique historical feature. CI Pigment Violet 23, also referred to as Dioxazine Violet or Carbazole Violet, is one of the most universally used organic pigments, by far the most important industrial pigment in the violet shade area. Dioxazine Violet is also unique as the dominant industrial violet pigment providing a brilliant, intense violet color and an excellent all-round set of fastness properties. The pigment has a polycyclic molecular structure, originally described wrongly as a linear arrangement, and later shown to adopt an S-shaped arrangement on the basis of X-ray structural analysis. Two other dioxazine pigments are of rather lesser importance. The synthesis and manufacturing route to CI Pigment Violet 23 is described in the review. Finally, a survey of the principal current applications of the individual dioxazine pigments is presented.

Winsor & Newton Professional Acrylics are highly pigmented and high quality, just like Winsor & Newton's other professional colour ranges. Spietschka E, Urban M, Paulus E. DE 2,742,575. (filed 5th July 2007 but withdrawn). Search in Google Scholar Violet falls between red and blue in an artist’s colour wheel and is placed after indigo on Isaac Newton’s 7 colour rainbow spectrum (ROYGBIV: Red, Orange, Yellow, Green, Blue, Indigo, Violet). Violet sits on the very edge of the visible rainbow spectrum after which we find Ultraviolet (or ‘beyond’ violet from the Latin ‘ultra’) which is invisible to most humans but can be seen by some insects and birds, for example, butterflies, who use Ultraviolet signals as a communication system for nectar guides and mating. Perhaps because of our inability to visibly perceive beyond violet, it is sometimes the colour that represents the fringe or the edge of knowledge.Cooksey CJ. Tyrian purple: 6,6ʹ-Dibromoindigo and related compounds. Molecules. 2001;6:736–69. 10.3390/60900736 Search in Google Scholar

Wooden G, Wallquist O. US 5,271,759. 21 Dec 1993. 10.1177/009182969302100234 Search in Google Scholar https://www.bibliacatolica.com.br/new-jerusalem-bible/acts/16/ (Verse 14). Search in Google Scholar Colour number/code: 229 Series number: 3 Chemical description: Carbazole dioxazine Colour index name: PV23 Colour index number: 51319 Permanence rating: A ASTM lightfastness rating: II Transparency/Opacity: TThe color was used mainly in the cotton dyeing process until the end of World War II. Specialized reactive dyes - which work better on cellulose fibers - then took over, and the patent owners were forced to look for a new market. Labelled Permanent Violett RL in 1952, the pigment found its modern context as a paint and print color. Its resilience and ability to produce unique colors have cemented its ongoing popularity in all sorts of commercial and art settings.