Can’t change Site Title Color

I can’t seem to change the site title colors on my website frontpage for bexchan.art. It’s the site title located in the top left corner of the site. When I try to change the site title color to black and preview the page, it instead shows up as white. when i view the pages CSS, I see that there is a class overriding the black color with white called “wp-elements-5”. I looked around the CSS styles files in the Theme File Editor but couldn’t find this class anywhere. Is there some way I can successfully change the Site Title color using this theme? Thanks!

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