Purple flagggs

 No country's flags have purple in them, thought history there was no purple in flags.

For one reason only, it was expensive, up to the 1800s purple had a weight in gold.

It is used by Royalty, and it meant Royal wealth, Queen Elizabeth the first prohibited anyone other than the British royal family from wearing purple, the status of the color came from its rarity.

The purple came from a place called near the Meditteranean sea Tyre, now modern-day Lebanon, traders found the dye from sea snails around Tyre named Tyree purple. The amount of effort was staggering, as it needed 10,000 purple sea snails just to get one gram of the dye.

As it was expensive and was only used and bought by royalty, it came synonymous with Rome, Egypt, and Persia.

The emperor Aurelion did not allow his wife to buy a head scarf made of purple Tyree, one pound of it cost around three pounds of gold or 51,000 USD in today's money.

A century later, in 1856, an 18-year-old scientist named Henry Perkin, accidentally made a synthetic purple while trying to make an anti-malaria medicine, so he patent the dye and became rich.

After it became affordable to the public, the status of the elite from the color purple, and some newer country flags use purple in their flags.

Purple the color that is now everywhere.