Logo appearing blurry on home page

Hello,

I created a high resolution custom logo for my site’s homepage a while back and it appears blurry (especially when zooming in) regardless of image resolution or quality once uploaded to the Twenty Sixteen theme.

In the past I’ve tested the logo image on some other sites with different themes and didn’t have the issue. The image being used is a PNG file for transparent background and I just tried adding it as a SVG file but it doesn’t seem to support that file type.

Is there anything I can do to correct this?

Thank you!

The page I need help with: [log in to see the link]