I would say a bit rich.
clean them up, turn the mixture nut 1/2 to 1 flat clockwise, and then try again. I have heard that if you are going to read the plugs, run the car 5-10 miles, then when you get home, just drive in and shut it off, don't idle. You want to read what the plugs were like during the run, not the idle mixture, which could load them up.
Also, check the mixture when warmed up by raising the pistons a 1/16" (use the little button on the side). Engine speed should stay about the same for a couple of seconds, then go down.If idle speed stays the same, and doesn't eventually decrese, that is too rich. If idle speed immediately goes down, that is too lean.
Good luck
Scott in CA