the.com/royal purple

A color named by committee: whoever killed the most sea snails won.

means A deep, rich purple historically so expensive to produce that only royalty and the very wealthy could afford to wear it.

from Traces back to Tyrian purple, a dye the Phoenicians made from the mucus of thousands of crushed Murex sea snails near the city of Tyre — it took so many snails for so little dye that the color became a byword for extravagance, and sumptuary laws in various ancient and medieval societies reserved it for rulers and nobility, cementing 'purple' as shorthand for royalty itself.

origin
Named for Tyrian purple, dye from crushed sea snails
cost
Once worth more than its weight in gold
exclusivity
Roman sumptuary laws banned commoners from wearing it
irony
Modern versions are synthetic and cost pennies
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