The probability of other creatures organically dying blue

[micha]

I would add Woad, which is pretty much the same chemical as you get from Indigofera -- both yielding indigo. But woad was available in Europe, and indigo is from central Asia. Also, woad has less of the chemical than Indigofera, so it sends to come out a shade closer to aqua, as it will have proportionately more adulteration from other plant chemicals.
 

[rhecht]

I would add Woad, which is pretty much the same chemical as you get from Indigofera -- both yielding indigo. But woad was available in Europe, and indigo is from central Asia. Also, woad has less of the chemical than Indigofera, so it sends to come out a shade closer to aqua, as it will have proportionately more adulteration from other plant chemicals.
 

 

I haven't tested it out yet, but is it as colorfast as India indigo and by extension, murex Techeiles?
 

[rhecht]

I just messaged this person and am waiting for an answer: https://www.theancientsblue.com/contact.html