Pink noise helped me for a time, but then it ended up making it worse. It might help, but even if it does, you could become accustomed or sensitized to it and it could genuinely exacerbate things. That's what happened to me.
If you find your tinnitus (if you have it at all) spiking with it, or if you experience any pain or discomfort from it, stop using it. Probably the case for white/pink/brown noise to. You might want to try "smoothed" versions of these as well, but take the same risks into consideration.