I found this fascinating text on The Public Domain Review, which is a treasure trove of copyright-free works, both images and texts. Extending Werner’s system, this is Patric Syme’s classic taxonomic guide to the colors of the natural world.
Patrick Syme, Werner’s nomenclature of colours; Edinburgh: William Blackwood, 1821.
WHITES.
1. Snow White, is the characteristic colour of the whites ; it is the purest white colour ; being free of all intermixture, it resembles new-fallen snow.
2. Reddish White, is composed of snow white, with a very minute portion of crimson red and ash grey.
3. Purplish White, is snow white, with the slightest tinge of crimson red and Berlin blue, and a very minute portion of ash grey.
4. Yellowish White, is composed of snow white, with a very little lemon yellow and ash grey.
5. Orange-coloured White, is snow white, with a -very* small portion of tile red and king’s yellow, and a minute portion of ash grey.
6. Greenish White, is snow white, mixed with a very little emerald green and
ash grey.
7. Skimmed-milk White, is snow white, mixed with a little Berlin blue and
ash grey.
8. Greyish White, is snow white, mixed with a little ash grey.