
Names of coulo9urs and the actual colour vary.
Strictly speaking as Blue is dilute of Black in animals we call it blue.
To the layperson desribign the colour as we would do if it were Paint then it would be Grey in many cases.
In sem breeds you do have a Blue that is a dark bluey grey.
In others yu get a nsty washed out colour that I personally find very unattractive. This si especially true with breeds that asre also brindle ad oftehn porr brindlign can make ther colour look muddy, often the case with staffords that are Black Bridnle apperarting clakc with scattered brindle hairs.
In whippets we often get a very attractive bue colour and even with Brindle where stripes are well defined it is attractive.
Blue in GSD's is just a horrible muddy colour.
On the other hand Weimeraners are Isabella/Lilac, (dilute of Brown) but people call it grey.
Then you have the same colour described differently in different breeds.
Brown is described as Liver in some breeds, chocolate in some, and erroneously Red in Border Collies, which do have true Red (which is actually anything from Yellow through to a rich red), which some people refer to as Aussie Red.
My breed is described as Grey, but it is not a solid colour but Wolf Grey/Agouti.