We had the same issue, gave up trying to find a silver washing machine and tumble dryer For the utility room, ended up buying white.
Dont get me started on ‘anthracite’ - ordered a lovely sink unit for the en-suite in anthracite - to me that is very dark grey…when it turned up it was dark blue. We if you look up ‘anthracite’ in the dictionary it can be grey, blue, green, gold and many other colours.The supplier changed it for oak but it meant I couldn’t have the slate grey en-suite that I wanted…..I hate the first world,problems.