No. They are definitely grey to me.
You can’t pick grey up like other colours because it is monochrome - and that’s not how colours work.
They are also a matte finish so it would be very hard for them to pick up a strong actual colour (e.g. red, blue etc) too.
That said all black objects are actually a very dark grey anyway - the only true black object would be something like a black hole.
It’s just for me the grey is just not dark enough in the black finish for me to think of it as black - perhaps that threshold varies from person to person. They do look black in dim lighting but in bright daylight they actually look much lighter - almost mid grey! The difference is stark compared to equipment that I have which is the standard hifi black.
As for the extra DSDac I have in “silver” in no kind of light does it look silver for me. There doesn’t appear to be any metallic sheen to it either. So I"m not sure anyone could see the finish as silver unless they have changed the finish at some point.