In iOS 18, currently in beta, Apple has added a new rainbow swatch to the Font & Color customization options on the Lock Screen, so now you can display the time in rainbow colors against your chosen wallpaper.

With ‌iOS 17‌, Apple added an option to customize the font and the color of the time on the Lock Screen, and in ‌iOS 18‌, there's a new rainbow color option that adds a variegated rainbow shade for the time.

Unlike the other color swatches that iOS includes for the Lock Screen, the multicolor option does not currently apply to widgets and the date, which turn white when the rainbow effect is applied. Here's how it's done.

1. Long press on your iPhone Lock Screen after authenticating.
2. Tap Customize.
3. Tap Lock Screen.
4. Tap within the frame around the clock.
5. Tap the rainbow swatch in the customization panel.
6. Tap the wallpaper, then tap Done in the top-right corner.

That's all there is to it. Did you know that for the first time, you can change the Flashlight and Camera icons on the Lock Screen in iOS 18, picking something more useful or turning them off entirely? Check out our how-to article to learn more.