I have bought a set of Lloyd mates for each of my Crossfires. A "Black" set for the SRT6 is just too black; It just doesn't match all that well.
The set in my limited is a better match, but the color doesn't seem to be available any longer; it is #167 Dark Slat Gray.
Both sets are the "Ultimate" mate which is heavy and holds up very well.
If you are looking for a perfect match I would suggest get a sample piece sent to you in the Dark gray # 185 and the H. Graphite #126. That would give you a good reference.