Thank you for posting the article on color names.
In several watercolor workshops I've come to learn that paint
put the colors number on the tubes of paint. This is a great help to
artists when the
names may change but the color is the same. Or finding out if the
pure (a single hue) or just a mixture.
Every pigment has a unique color index name, consisting of two
letters and some numbers.
It's not a complex code, the two letters stand for the color family
e.g. PR = red, PY = yellow,
PB = blue, PG = green. This, plus the number, identifies a specific
pigment. For example,
PR108 is Cadmium Seleno-Sulfide (common name cadmium red), PY3 is
(common name hansa yellow).