Hi Wolf, Welcome!
I did a quick search and it appears Den. Copter is going to have a dark purple/marron bloom. The parents are: Den. Copper Queen x Den. Doctor Poyck. It was first registered in 2001 by P.Buranaraktham. I could not locate a photo of the actual plant or bloom, but did find images of the parents. Both were fairly analogous in color. Copper Queen being a fairly dark purple with a light green center and Doctor Poyck a brown/red. Another member here will probably have more information, so hang in there! Once again, welcome.