LumenShade — Smart Dark Mode

About

LumenShade is a smart dark mode for the modern web. Instead of crudely inverting colors like most extensions, it perceptually remaps every page using the OKLCH color space — so dark surfaces feel natural, text stays readable, and brand colors keep their identity.

Why LumenShade is different

Perceptual color science (OKLCH), not naive CSS invert
Contrast guard automatically enforces APCA-level readability
Brand-aware: accent colors keep their hue and chroma
Image-safe: photos, video and canvas are gently dimmed, never inverted
Per-site control with a one-click whitelist
Sunset-to-sunrise scheduling
Live brightness, contrast, warmth and image-dimming sliders
Zero tracking. No account required. Settings stay on your device.
Who it's for

People who read for hours and want a dark mode that doesn't fight them
Designers and developers who care how the web looks at night
Anyone tired of "dark mode" that turns photos into negatives
Free to install. Optional Pro plans unlock custom palettes and cloud-synced settings.

Keyboard shortcut: Alt+Shift+D toggles LumenShade on the current tab.