
Customize the appearance of iCloud.com
On iCloud.com, you can choose a different background color for the homepage. Depending on your device’s settings, you can also use a light or dark appearance for the entire site.
Change the background color of the homepage
Go to iCloud.com, then sign in to your Apple Account (if necessary).
Scroll to the bottom of the homepage, then select Customize.
If you’re on iCloud.com but not on the homepage, select
in the toolbar, then select iCloud Home Page.Select Edit Background, then choose a color.
Select Done in the top-left corner of the window.
Choose a light or dark appearance

Dark Mode gives iCloud.com a dark color scheme that’s perfect for low-light environments.
To use Dark Mode on iCloud.com, you need an iPhone, iPad, or Mac. When you turn on Dark Mode on your Apple device, you also turn on Dark Mode for iCloud.com. See the following:
For other ways to personalize your iCloud.com experience, see Customize and use the homepage tiles on iCloud.com.