Hi,
Although it's not called SL officially, but just shows decals in that way, the model 8000 appears in team blue color like the VW/Trek team at this time in 99 and 2000 catalogs available for instance at Vintagetrek.
here the 1999 model (I'm pretty sure that just catalog picture or scan show the nice color not well)

Yours has different than the bike in the catalog a 1999 RS Judy, other than it looks from the picture pretty original
Thanks for that.