LumenShadeGet the extension
A new approach to dark mode

Dark mode that actually looks designed.

Most dark mode tools just invert your screen. LumenShade analyzes every color on the page and remaps it through perceptual color space — so your eyes get comfort and the web keeps its character.

Add to Chrome — Free See the algorithm
v1.0 · Manifest V3 · No tracking · No account
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Inversion vs intelligence.

chronicle.example.com/article
The Chronicle
Photo: Sunset over the desert
Technology · Long read

The quiet revolution in how the web handles color.

By Maria Chen · 6 min read · Share

For three decades, designers reached for HSL when they wanted to talk about color in code. It was easy and it was wrong — equal lightness values produced wildly unequal brightness. Read more about why OKLCH is finally fixing that, and what it means for accessibility.

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chronicle.example.com/article
The Chronicle
Photo: Sunset over the desert
Technology · Long read

The quiet revolution in how the web handles color.

By Maria Chen · 6 min read · Share

For three decades, designers reached for HSL when they wanted to talk about color in code. It was easy and it was wrong — equal lightness values produced wildly unequal brightness. Read more about why OKLCH is finally fixing that, and what it means for accessibility.

!
Get the deep dive in your inbox
Weekly. Free. Unsubscribe anytime.
⇄
Original site
LumenShade
Perceptual color science
OKLCH remapping preserves hue and chroma so brand reds stay red, link blues stay blue.
Contrast guard (APCA)
Every text/background pair is verified for legibility. No washed-out gray-on-gray.
Image-safe
Photos and videos are softly dimmed — never inverted into alien colors.
Zero flash
Runs at document_start with a background pre-paint. No white flash before dark loads.
Per-site control
One click whitelist. LumenShade remembers your preference for every domain.
Schedule
Auto-enable from sunset to sunrise, or set your own hours.

"Pure inversion is a parlor trick. Color science is a craft."

— The case for LumenShade

Start reading the web at night, properly.

Free, open, and small. About 18 KB after gzip.

Download LumenShade