How can I change body background color?

Change body background with CSS

To change the body background color, you can use CSS. To do that, create a styles.css file in your project and import it at the root of your application:

body {
  background-color: #f9f9f9;
}

Change body background with CSS variable

The --mantine-color-body CSS variable is used for the body background and as the background color of some components (Modal, Paper, etc.). To override this variable, create a styles.css file in your project and import it at the root of your application:

:root {
  @mixin light-root {
    --mantine-color-body: #f9f9f9;
  }

  @mixin dark-root {
    --mantine-color-body: #333;
  }
}