Blundstone Chelsea Boots Rustic Black

Absolutely love these. I bought them off another posher but I could use the money rn :/ She said they were obviously used. But they are in great condition. And def broken into. Which is great. These are 5.5 in Australian sizing?? Not sure but I am a true 8.5 in Nikes, Hokas, New Balances if that helps I believe these are “black” but to me they look grayish blue