Safari introduces Adaptive Dark Mode in 27.3

Safari 27.3 beta introduces Adaptive Dark Mode, which automatically converts bright websites to dark mode for users who prefer it, addressing the gap where nearly 40% of web traffic comes from dark mode users but only 10% of websites natively support it. The feature intelligently analyzes page colors and inverts light backgrounds to dark while preserving text visibility, contrast ratios, and image integrity, except for websites that already signal dark mode support through HTML or CSS. Users can enable it by setting their system to dark mode and trying the feature on bright websites.