Is purple really a dignified class color ?
yes. a very long time ago, purple dye be made by the phoeniceans and came from a TINY bug. so lots had to be used to brand name a small amount of dye, it was one and only affordable for royalty
Its association with illustrious class has to do beside the fact that the dye for the colour particular to the ancients as "purple" (see below) was awfully expensive, since the only innate source they knew of be difficult to grow and didn't produce much dye. Because of that purple clothing became a status symbol contained by ancient Persia. The Greeks picked up on it in their contact with the Persians. The Romans borrowed it from them, but they regulated who exactly could use purple dye on their clothing, reserving it merely for senators and their male family circle members. These regulations eventually made it into the post-Roman European societies: within many countries, sumptuary law prohibited anyone but the royals from wearing purple. (The theory person that it was an expensive introduction, and bringing too much in would dispatch too much money out of the country: it was that expensive.) The quip is on us, though, because by "purple" they meant a vast winy burgundy red, not the purple we know. So the colour we see as high-class isn't their high-class colour at all!
But it's an interesting examine as to whether the actual colour of purple is still thought of as high-class. We certainly know intellectually that purple is supposed to be considered high-class, but most really neat rooms and clothing are completely free of purple. People seem to see muted mud tones and shades of white as more high class than bright colours now.
Answers: Purple in most cases does symbolize things resembling royalty and such so in the nonspecific sense, I guess it does.
Alot of colours are associated with different things though. Like red. Most population will probably first think of Valentine's time or a rose when that color is mentioned etc..