Tyrian purple in antiquity because the colour did not easily fade, but instead became brighter with weathering and sunlight. Its significance is such that the name Phoenicia means 'land of purple.' It came in various shades, the most prized being that of "blackish clotted blood". Tyrian purple was expensive: the 4th-century-BC historian Theopompus reported, "Purple for dyes fetched its weight in silver at Colophon" in Asia Minor. The expense meant that purple-dyed textiles became status symbols, whose use was restricted by sumptuary laws. The most senior Roman magistrates wore a "toga praetexta", a white toga edged with a stripe of Tyrian purple.
British Colour Council each colour. BCC colour codes define colours as varying by hue, tone and intensity, and were originally designed for use in the textile dye industry. The colour names given by the BCC were particularly descriptive and often referred to flora or fauna, with titles such as Larkspur ("No. 196"), Forget-Me-Not ("No. 84"), Bee Eater Blue, Kermes, and Squirrel. The codes of the BCC became standards for identifying colours used in everything from the Royal Horticultural Society, to British government planning commission maps, the British Army, Royal Institute of British Architects, and the Royal Mail. BCC codes, due to their subtlety