# Safari introduces Adaptive Dark Mode in 27.3

- HackerByte page: <https://hackerbyte.net/en/stories/safari-introduces-adaptive-dark-mode-in-27-3-50358562>
- Original source: <https://webkit.org/blog/18541/introducing-adaptive-dark-mode/>
- Hacker News discussion: <https://news.ycombinator.com/item?id=50358562>
- Submitted to Hacker News: 2026-11-03T21:39:05.000Z

## AI-generated summary

Safari 27.3 beta introduces Adaptive Dark Mode, a feature that automatically converts light websites into a dark theme when enabled by the user. This aims to provide a consistent dark experience across the web, addressing the significant gap between users preferring dark mode and websites supporting it. The feature works by analyzing page colors and transforming them to invert luminosity while preserving hue, ensuring contrast and usability.

## Key points

- Adaptive Dark Mode automatically makes light websites dark in Safari 27.3 beta.
- It addresses the disparity where 40% of users are in dark mode, but only 10% of sites support it.
- The feature analyzes page colors, inverts luminosity while preserving hue, and ensures WCAG contrast ratios for text.
- It intelligently handles images and SVG icons, leaving most unchanged but transforming those that lose contrast.
- Safari prevents websites from detecting Adaptive Dark Mode to protect user privacy.