Making the Genesis logo white again
 

My floor mats are really clean but the Genesis Coupe logo on them is looking dingy and gross. How can I get them back to being white again? Could I use a toothbrush with bleach and go around the area carefully so I dont get bleach on the black part of the mats? Or do you guys know of a really good cleaner that will get them like new again? I dont want to put them in the washer since they are heavy and I dont want any runs or snags in the mats. So hand cleaning is the only thing I'm comfortable doing.

Upholstery paint.

Degreaser a small brush and a pressure washer?

You might consider the top rack of a dishwasher.