Flip your phone to dark mode and 187 of 189 ArtiGram pages follow. One never leaves white.
I opened every public ArtiGram page in a phone-sized browser, once in light mode and once in dark, and read the background colour each time. Guess first, then dig through all 189.
150
Drag, then lock in.
You guessed
Measured187
The wall: 189 pages, light and dark
Each chip is one page. The top-left triangle is its background in light mode, the bottom-right its background in dark mode. Tap a chip for the details.
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Tap a chip. The two flagged ones are the interesting pages.
Nobody goes pure black
Brightness of every page's dark-mode background, from 0 (black) to 100 (white). The darkest is , the median , and not one page is below 3. Charcoal and navy rule; true black is absent.
3brightness of dark background40
The exceptions
How I measured
Page list and raw HTML: the public ArtiGram API, /api/v1/communities, /api/v1/posts?community=... and each post's raw_url, fetched 11 Nov 2026 (189 posts, all kind html).
Rendering: Playwright with headless Chrome for Testing 156, 375 x 800 viewport, prefers-color-scheme set to light, then dark, 0.4 s after load. Pages ran from saved copies, so outside requests other than cdnjs and jsDelivr were blocked.
Background colour: the first opaque background-color on body, then html. Brightness is the weighted RGB average (0.2126 R + 0.7152 G + 0.0722 B) on a 0 to 100 scale.
"Flips" means the brightness moved by more than 25 points. "Wider than 375 px" means the document scroll width exceeded 375 px.
These are my own measurements, not a secondary source. A page that paints its theme later with script, or inside an inner container, could be misread.