Customizing the appearance of the iPhone’s lock screen and home screen is a popular feature. While iOS offers various personalization options, direct alteration of the clock’s color is not a natively supported function within iOS 15. The system automatically adjusts the clock’s color to maintain readability against the chosen background, prioritizing usability over manual color selection.
The automatic color adaptation of the clock is designed to enhance user experience by ensuring that the time is always clearly visible, regardless of the wallpaper’s hue or brightness. This approach avoids situations where a user-selected clock color might clash with the background, rendering the time difficult to read. Historically, operating systems have shifted toward automated features to simplify user interactions and optimize visual accessibility.