For over 1,500 years, Tyrian purple was the most expensive colour material in the world — more valuable than gold by weight. Roman law restricted its use to emperors and highest ranks. "Born to the purple" (porphyrogenitus) — being born to ruling royalty — became a phrase. The Byzantine Emperor's chamber was lined with porphyry (purple stone), giving the imperial colour near-religious significance.

Regal, mysterious, and spiritually charged. Purple combines the stability of blue with the passion of red — it is neither fully one nor the other, giving it a complexity and ambiguity that pure colours lack. Associated with wisdom, creativity, and the integration of opposites. In many spiritual traditions, purple represents the highest spiritual attainment.

The purple revolution of 1856: William Perkin, an 18-year-old chemistry student attempting to synthesise quinine, accidentally produced the first synthetic dye — mauveine (synthetic purple). This discovery founded the synthetic dye industry, transformed chemistry into an industrial science, and made purple available to the middle classes for the first time in history. Within two years, Queen Victoria's purple gown had made "mauve" the fashion colour of the century.