Started watching Afterworld today and it reminded me (obliquely at least) of a book I read in my teens.
I can't remember the name of this book or its author. I do remember that I read a reasonable number of books by this author around the same time, so he (I think it was a he) must have been reasonably prolific.
This particular book (set in modern times) was about a guy who found himself becoming increasingly ignored. Eventually he seemed to disappear out of everyone's view. At the same time, he found everything else "greying out".
In the story he ended up finding other people "slipping" into his domain, as well as food etc. He could tell the 'real' things because they had colour.
I'm really not even certain of the main plot, but the loss of colour is what I really remember. I would have read this around 1986 or a bit later, so it is at least that old.
Linda and I had a good google around the place trying to figure it out, but it is really quite hard to choose your search terms when you have little to no idea what you are looking for.
I have put out requests with my friends in the Christian Gamers Guild and also the Name That Book forum at Library Thing in the hope that someone can help me out. I think perhaps this space is a little less likely to uncover a solution, but it is worth a shot...