Green is the color for green parties, Islamist parties, Nordic agrarian parties and Irish republican parties. Orange is sometimes a color of nationalism, such as in the Netherlands, in Israel with the Orange Camp or with Ulster Loyalists in Northern Ireland; it is also a color of reform such as in Ukraine. In the past, Purple was considered the color of royalty (like white), but today it is sometimes used for feminist parties. White also is associated with nationalism. "Purple Party" is also used as an academic hypothetical of an undefined party, as a Centrist party in the United States (because purple is created from mixing the main parties' colors of red and blue) and as a highly idealistic "peace and love" party—in a similar vein to a Green Party, perhaps. Black is generally associated with fascist parties, going back to Benito Mussolini's blackshirts, but also with Anarchism. Similarly, brown is sometimes associated with Nazism, going back to the Nazi Party's tan-uniformed storm troopers.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What group is similar to the Ulster Loyalists?
unanswerable