Crimson has been one of the most coveted colours in history. The word derives from the Arabic "qirmiz" — the kermes insect. For centuries, crimson was the colour of royalty and high clergy, as its production from insects was extremely labour-intensive and expensive. In 1856, William Perkin accidentally synthesised the first synthetic dye (mauveine), leading to industrial crimson pigments.

Deep, passionate, and intense. Crimson carries the weight of love, sacrifice, and danger. More complex than pure red — it suggests depth, mystery, and conviction. Associated with courage, martyrdom, and romantic love across cultures.

The colour of cardinals' robes in the Catholic Church. Harvard University adopted crimson as its official colour in 1875. In heraldry, it represents courage and martyrdom. The "Scarlet Letter" in Hawthorne's novel made crimson synonymous with shame and passion in Western literature.