change header color

I am using the Stargazer theme, and I am trying to change the main area’s color from white to tan (fbe0b9). I was able to, with help, get the majority of the page switched to tan, but the color in the heading remains white. I cannot find a way to change this area without coding, and I cannot find a simple way to edit the existing code. I am very new to coding, so if you could explain in great detail what I am supposed to do it would be helpful.
Thanks!
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