secret societies and colours - the two themes are not connected

Let's say this is research for my book.  My current book has a number of secret societies helping members and oppressing others and I should know something about the artwork of such groups.  One example

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A colour thesaurus.  I get caught up in the story in my head and (I hope) give an adequate description of the action but I know I leave out details.  Hopefully in the second pass, some ordered vocabulary lists like this will remind me of what to write rather than merely think.

Other colour groups available at the link.