You wanted to see a purple-gray cat?
Using poor re-coloration skills, I show you cats with purple-gray fur:
This is a lighter purple-gray cat with lighter dapples. It has a notable lavender tint ot its fur.
And this is a darker purple-gray cat. It has a more violet tint to its fur with lighter streaks.
They aren't perfect recolors but I have seen a cat like this before, I just couldn't find a picture.