Quote Originally Posted by Michael R 1974 View Post
No. There is always a minimum silver density. Image density is the net density above the film base+fog density.

And if your prints are muddy, check your safelight, and check your darkrooom and enlarger for light leaks. Safelights are not always safe.

You can do a simple test by simply turning off the lights and check for light leaks. If there are any, plug them, until your darkroom is safe.
Then make a print without the safelight on. If the prints still look the same, then you don't have a light leak problem.