Blurry Logo

No matter what I’ve tried, the text portion of my logo is slightly blurry. My logo itself appears fine, but my company name is always blurry. My image is 400×400, as suggested. Any suggestions to clear this up? I’ve tried many different methods and nothing seems to work. I am using Twenty Thirteen Child.

I have a maintenance page up at the moment.

Thanks,
https://www.semaystudio.com