Logo/title

I'd like to display my site title as this: https://ibb.co/fXLJBRf it's a black logo and white font stacked. I uploaded it as just a logo but it's not responsive with it's color. The background color on the main page is grey, but on the other pages the background is white. I'd like to have the site title be on two lines and look like my image. makeleaders.org