Red w/ Yellow accents.
There is not a way to get the color back in costume jewelry. The jewelry on the costume is not real.
he doesn't have a costume
someone
Flash's arch enemies is the two zooms
it heats up
Lincoln Green
Its green originally
he has had many names but his name at the moment is Barry Allen
You can find a Candy Corn Colored Costume at your local costume or thrift shop. You can also try searching http://www.ebay.com/ for costumes with your desired colors.
The Reno 911 costume is beige/brown. This answer was confirmed using a number of example pictures found online. Textual descriptions of the costume were also found to see what color a particular website used. Note however there were a couple of examples where the costumes were black.
Barney has been the same color and costume for whatever amount of time it has been showing.
Grey/Silver