What was the significance of the color scarlet to ancient rome who were the people who wore it
What was the significance of the color scarlet to ancient rome who were the people who wore it
it's bright and was expensive (iirc).
your dudes all wear red, and your general on the hill knows where they are and can direct them better than the guy on the other hill, whose men all wear homespun and dirt.
it looks flashy and scary.
basically the same reasons that red has been worn by military units throughout history.
If the average legionary wore red tunic (and undyed wool might have been more common) it would have been a madder based dye rather than the expensive kermes used to make scarlet or crimson
Then who wore scarlet
There were a number of expensive dyes in Rome: Tyrian Purple being the most famous of course, but Armenian Red (Scarlet), Kermes Vermillo (Crimson), Indigo, and Saffron Yellow, were also very expensive. Armenian Red was believed to be worn by high ranking Officers or Administrators (being second only to Tyrian Purple) - The idea that every soldier wore it is indeed nonsensical.
The shade of red (either from kermes or the Armenian species) wouldn't be so exact. You can produce varying shades even with modern chemical dyes. Nor did ancients have words for all these shades to begin with. Pliny speaks of coccus (which could be translated simply as fine red rather than specifically crimson or scarlet) from Galatia, Africa and Lusitania for the officers' cloaks. This is also the same word that appears in the "Whore of Babylon" thing from Revelation that the OP meant.
I think I will wear a scarlet dress this evening.
Dying with blood is much cheaper if its not your own. That or Cherry juice.It needs to be dyed with natural dyes, otherwise it's not what John meant.
Luckily, dying at home is surprisingly easy* and apparently you can buy dried kermes online for only $53 per gram.
*Though probably not with natural dyes, never messed with them.