Just installed a fresh WordPress version, and not very happy with the default WordPress theme's background color? You can change it in just few seconds without any coding knowledge. Here's how you change background color in WordPress.
Changing background color in default WordPress themes like Twenty Twenty One
In order to change background in WordPress you need to login to WordPress admin panel (yoursite.com/wp-admin/ )
First step if you want to change WordPress site's background color to any other is to click Customize button at the top of the page.
The same setting can be found in Appearance >> Customize if you're browsing your website's admin section.
Then click Colors & Desk mode on the left side of the window.
Click Select Color button.
You may choose any color you want from the WordPress built-in color picker or you may enter any color code in HEX format.
You will see changes while changing colors in the color picker.
You'll probably also notice that if you choose any darker background color then WordPress will automatically change text color to light to makesure that website content will be visible no matter which background color you choose. Handy!
Once you find the color you like then click Publish button at the top of the page to save changes.
If you'll ever want to reset background to default, just get back to this Color & Dark Mode menu, and hit Default button. It will reset background color to the theme's default color.