Plain Screen — full-screen colour, nothing else
A screen with nothing on it.
Pick a colour, press one button, and the display goes flat edge to edge. No account, no install, no extension asking for permission to read your tabs. Save the page and it keeps working offline.
One pageNo cookiesWorks from a USB stick
The panel
Any hex works. Patterns are drawn in CSS, so nothing blurs when the panel goes fullscreen.
Six things this is actually for
Not a marketing list. These are the reasons the page exists.
- Dead pixels
- A flat colour hides nothing. Cycle black, white, red, green and blue, and look for the dot that stays lit when it shouldn't.
- Backlight bleed
- Dark room, black panel, brightness up. Any glow around the corners is the panel, not the content.
- The second monitor
- Park an idle screen on black instead of a browser window you forgot to close three days ago.
- Paper white
- Hold a white panel against a sheet of paper. Paper stock runs warm or cool; your screen probably matches neither.
- A free fill light
- A laptop at full white is a soft, slightly blue light source for small product shots. Ugly. It works.
- Projectors
- Blank the projector mid-talk without shutting the laptop or losing your place. Esc when you're done.
The colour index
Six pages with their own notes on what the colour is good for. Anything else, type a hex.
Three steps, no manual
Choose a colour
The swatches cover the usual suspects. The hex box takes anything from #000000 to #FFFFFF, three digits or six.
Press Fill screen
The panel takes the whole display. Esc brings it back.
Download if you need a file
PNG, flat or patterned, up to 3840 × 2160. Most people never touch this button.
What it won't do
Better to say this before you find out.
- It won't clean your monitor. A flat colour makes dust and fingerprints easier to see, that's all. The wiping is still your job — dry microfibre first, and no solvent on a plastic panel.
- It won't fix a black screen that arrived on its own. That's usually the cable, the GPU or the backlight. A web page has no opinion about any of those.
- It won't save much power on an LCD. The backlight stays on behind black. On OLED the pixels really are off, so a black panel draws less — the rest of the machine doesn't care.
- It won't stop the display from sleeping. That setting lives in your OS and this page won't fight it.
- It won't tell you whether a pixel is under warranty. Manufacturers each have their own threshold for what counts as a fault. Read yours before you get attached to the argument.
Questions worth answering
Is it free?
Yes. No account, no ads, no upsell, nothing to install.
Why is the download capped at 4K?
Because 8K in a browser tab is a 132 MB canvas, and phones fall over trying. 4K covers every display you're likely to own.
Can I send someone a link to a specific colour?
Yes. The address bar holds it: ?c=1b1b1b&p=dots. The panel reads that on load.
Does it work offline?
Save the folder and open index.html. Nothing loads from a CDN, no fonts, no tracker, so it behaves the same with the wifi off.
My screen turns off after a few minutes.
That's the OS power setting, not the page. Change it in display settings, or move the mouse.
Why is it called Plain Screen?
Because ‘black screen generator’ undersells the thing, and there are already forty pages with that name.