Quote Originally Posted by davidlpope View Post
Isn't the only difference here that Wilson's replaced their regular green shade with dark green? The purple, scarlet, and light blue look typical to me.
Nearly, but the blue is a true dark navy and not their purple. This is possibly (probably?) their 'dark blue' as opposed to their standard 'blue'. What's interesting is that neither darker shade is specified in the 1819 count, just the standard blue and green, which these aren't.

The point of my OP was to highlight that such dark shades can be and were obtained from natural dyes contrary to what is often said of these dyestuffs.