ContentColorKt

public static final @NonNull Color calculateContentColor(@NonNull Color backgroundColor)

Calculates the preferred content color for backgroundColor. This will return either Color.White or Color.Black, depending on the luminance of the background color.

public static final @NonNull Modifier contentColorProvider(
    @NonNull Modifier receiver,
    @NonNull Color contentColor
)

Provides contentColor for text and iconography to consume. Content color is provided automatically by surface - contentColorProvider can be used for cases where some text or icons inside a surface require a different color for emphasis.