Purple Screen

Open a solid full screen purple on any device, or scroll down if your screen has turned purple on its own. Both take about a minute.

Opens a solid purple screen. Tap or use the arrow keys for violet and magenta.

A Plain Purple Screen, Online

This page fills your display with solid purple. Press the button and it goes full screen, with the browser and the rest of the site out of the way.

Every pixel on your screen is made of three lights: red, green and blue. Purple is the red and the blue switched on with the green switched off. That one fact explains most of this page, because it also means a screen that has gone purple by itself has usually lost its green.

Tap or use the arrow keys and the purple screen steps through three shades: a deep purple, a violet, and a bright magenta. Magenta is the strongest of the three and the best one for finding faults, since it runs both the red and the blue at full power.

The colour is drawn at the size of your display, so a phone, a laptop and a TV all get the same flat purple colour screen with nothing to scale and nothing to compress.

If you came here because your screen turned purple on its own, skip to the fixing sections below. That is a different problem, and on a desktop monitor it is usually the cable.

What a Purple Screen Shows You

Purple lights the red and blue parts of every pixel and leaves the green part dark. That makes it the one background where a green fault has nowhere to hide.

  • Stuck Green Pixels

    A pixel stuck on green shows as a small bright green dot on purple, and there is no other colour that makes one stand out this clearly.

  • A Missing Green Channel

    If the whole screen already looks purple when it should look white, the green is not reaching the panel. That is the cable, the port or the graphics card, not the screen.

  • Dead Pixels

    A dead pixel shows as a black dot. Deep purple is fairly dark, so switch to the bright magenta shade before you go looking for these.

  • Uneven Colour

    Mixed colours show unevenness better than pure ones. A purple that leans pink at one edge and blue at the other is a panel that is not mixing evenly.

  • Colour Banding

    Deep purple sits in the darker half of the range, where cheap panels show steps instead of a smooth surface.

  • Part of a Full Check

    Purple answers one question. The full colour test steps through nine colours and covers the rest of the panel.

How to Use the Purple Screen

A minute is enough for a quick check of the panel.

  1. Clean the Screen

    Wipe it with a soft dry cloth first, so dust is not mistaken for a fault.

  2. Open the Purple Screen

    Press Open Purple Screen. The display goes full screen purple with nothing else on it.

  3. Step Through the Shades

    Tap the screen or press the arrow keys to move between deep purple, violet and magenta. Magenta is the brightest, so save it for the close look.

  4. Look for Green Dots

    A bright green dot is a pixel stuck on green. A black dot is a dead pixel. Work from the middle out to the corners, and press Escape when you are done.

How to Fix a Purple Screen

Most people who search for a purple screen are not looking for one. They are looking at one, and they want it gone. Here is the order to work through, quickest first.

Start with the cable, because on a desktop monitor it is the answer far more often than anything else. Purple is what you get when the green signal stops arriving, and a cable is the easiest place for one colour to go missing. A plug that is half out, a bent pin, a cheap HDMI lead squashed behind a desk, a DisplayPort connector that never clicked in properly: any of them can drop the green and leave you with a purple screen.

So unplug both ends, look at the pins, plug them back in firmly, and see what happens. If the picture flickers back to normal while you are wiggling the cable, you have found it. Swap the cable for a different one if you have one spare, and try the other port on the monitor while you are there. A cable costs very little and it fixes this more often than any setting will.

Next, rule out the computer. Plug the monitor into a different machine, or plug a different screen into the same machine. If the purple follows the computer, the graphics card or its port is at fault. If the purple stays with the monitor, the monitor is.

Then check the picture settings on the monitor itself. Open the monitor menu and look for colour temperature, a custom RGB setting, and any picture preset. If someone has pulled the green channel down to zero in a custom mode, the screen will look purple with nothing wrong at all. Setting the monitor back to its factory defaults takes ten seconds and rules this out for good.

After that, the graphics driver. Both the Nvidia and the AMD control panels have their own colour settings sitting on top of Windows, and a bad update or a stray digital vibrance slider can tint the whole desktop. Reset those to default. If the purple screen only appeared after a driver update, roll the driver back.

The colour profile is worth a look too. A damaged or wrong profile pushes the whole picture off, and driver updates sometimes leave one behind. On Windows, open Colour Management and set the display back to the default sRGB profile. On a Mac the same list sits under Displays and Colour.

One more thing that catches people out: if the purple only shows in one app, or only on a video, it is not the screen. Hardware acceleration in a browser or a media player can produce a purple or green cast on video while the rest of the desktop looks fine. Turn hardware acceleration off in that app and check again.

If the cable, the computer, the settings and the driver are all ruled out and the screen is still purple, the panel or the board behind it has failed. That is a repair, not a setting.

Purple Tint on a Dell or Other PC Monitor

A purple tint on a PC monitor is nearly always the connection, and Dell monitors come up in these searches more than any other brand. That is not because Dell screens are worse. It is because Dell sells an enormous number of them with DisplayPort cables, and DisplayPort is the connection most likely to give you a purple or pink tint when it is not seated properly.

Many DisplayPort plugs have a small latch that has to click in. If it has not clicked, the plug can sit far enough in to carry a picture but not far enough to carry all of it, and the result is a Dell monitor purple tint that comes and goes when the desk gets knocked. Press the release catch, pull the plug out, and push it back until you hear it.

The same applies to the cable that came in the box. If the tint is still there with the cable reseated, swap to a different cable, or move to HDMI for a moment just to see whether the purple goes away. If HDMI is clean and DisplayPort is purple, the cable or the DisplayPort port is the problem and you have your answer.

A Dell purple screen that appears only when the monitor wakes from sleep is a slightly different case. Some monitors and graphics cards do not renegotiate the connection cleanly on wake. Turning the monitor off at the switch for ten seconds and back on usually clears it, and updating the monitor firmware fixes it properly on the models where Dell has released one.

On any purple PC monitor, before you decide the screen is broken, put this purple page and the white page on it side by side with a second screen. Two screens showing the same white differently tells you more in five seconds than an hour of menu hunting.

Purple Screen on a Phone

A purple screen on a phone is a different problem from a purple screen on a monitor, because there is no cable to blame. It is the panel, and on some models it is well known.

The Samsung Galaxy A50 is the clearest example. A purple or pink patch that spreads across the display, often starting from an edge or a corner and getting worse over weeks, has been reported by a great many A50 owners. It is a fault in the AMOLED panel itself. It often shows up after a software update, which makes people think the update caused it, but reinstalling the old software does not bring the screen back. Samsung A50 purple screen problems need the panel replaced.

The Galaxy M31 shows the same pattern, and so do a handful of other phones with panels from the same period. If your phone is one of them, the useful thing to know is that no setting, no cache wipe and no factory reset will fix it, so you can stop trying those and go straight to asking a service centre what a panel costs. Whether a repair is covered depends on the phone, the country and how old it is, so ask rather than assume.

Before you accept that the panel has failed, though, rule out the two things that are not the panel. First, drop your phone in safe mode. If the purple disappears in safe mode, an app is doing it. Second, look at the shape of the purple. An even purple cast over the whole screen is usually software or a colour setting. A patch, a band, or a purple area with a visible edge to it is physical damage to the panel.

On any phone, also check the display settings for a colour mode. Samsung has Vivid and Natural, and other makers ship their own. Accessibility settings are worth a look too, since colour correction and colour inversion both live there and both can make a screen look purple. They are easy to switch on by accident and just as easy to switch off.

A phone that went purple after a drop or after getting wet has damage behind the glass. That is a repair, and the sooner it is looked at the better, because the affected area usually grows.

Purple Screen on a TV or Projector

On a TV, start where you would start with a monitor: the cable and the source. A Sony Bravia purple screen is most often the HDMI lead between the TV and whatever is plugged into it, or the box at the other end rather than the TV.

Work through the inputs. Try a different HDMI port, a different cable, and a different device. If one input is purple and the others are clean, the port or that cable is the fault. If every input is purple, the TV is. Long HDMI runs behind furniture are a common cause, since a lead that is bent tightly or trapped can lose a colour without failing completely.

Be aware that some TVs show a plain purple or blue screen on purpose when nothing is connected. If your purple screen carries no picture at all, that is a no-signal screen, and the thing to fix is the source rather than the television.

Projectors follow the same rules with one extra step. An Epson projector purple screen, or a picture that has gone pink and purple, is usually the cable or the connector at either end. VGA is the worst offender here, because a single bent or broken pin drops one colour and a VGA plug that is not screwed down works itself loose over time. Check the pins, push the plug home, tighten the screws, and try a different lead.

If the cable and the source are both ruled out, the projector itself is the next suspect. Reset the picture settings to factory defaults first, since a colour setting left wrong will do this. If a purple cast survives a factory reset and a known good cable, the problem is inside the optical block, and that is a service job rather than something to work through at home.

Violet Screen and Purple Screen

Violet and purple are not quite the same thing, and it is worth a short explanation because a lot of people search for a violet screen and get sent to purple pages.

Violet is a real colour of light with its own wavelength, at the far end of what your eyes can see, just past blue. Purple is not. Purple is what your brain produces when red light and blue light arrive together, and there is no single wavelength that makes it.

On a screen, that difference disappears. A display only has red, green and blue lights to work with, so it makes violet the same way it makes purple: red plus blue, with more blue in the mix. So a violet screen on a monitor is a purple screen with the balance shifted, which is exactly the second shade on this page.

For finding faults it makes no real difference which of the two you use. Both leave the green switched off, and that is the part that matters. Use the violet shade if you prefer how it looks, and the magenta shade when you want the brightest possible background for spotting a stuck green pixel.

Purple Screen Wallpaper, Photos and Video

Plenty of people open this page for the colour rather than the test, and that is a perfectly good reason to be here.

For a purple screen wallpaper, use the Download PNG button under the preview. Pick the size that matches your display and you get a flat purple image with no logo, no watermark and no compression marks. There are four sizes, including a tall one for a phone. Set it as your wallpaper the way you would any other picture.

Using a purple screen for a photo works in two ways. Fill a second screen or a tablet with purple and stand it behind a small object, and you have a clean coloured backdrop that costs nothing. Or turn the same screen towards the subject and you have a soft purple light on it, which is the trick behind a lot of the purple lighting you see in product photos and portraits.

A purple screen video does the same job, but a video brings ads, a player, buttons that appear when you touch the screen, and a device that gets warm for no reason. A flat page holds the colour still until you leave it, which is what you actually wanted.

One warning if you are filming: a flat colour on a screen can flicker or band on camera, because the camera shutter and the screen refresh do not line up. If that happens, change the shutter speed or the frame rate, move the screen further from the subject, or use the downloaded image on a print or a screen you are not filming directly.

Purple Screen Light, and Why There Is No App to Install

A purple screen light is a phone, a tablet or a monitor turned into a small coloured lamp. It works well for mood lighting in a dark room, for a splash of colour behind a desk setup, and for the coloured fill light in a photo or a video call.

One thing to be clear about, because it comes up: a violet or purple screen is not ultraviolet light. Screens cannot produce UV, so a purple screen will not do any of the things a UV lamp does. It will not check a banknote, it will not set nail polish, and it will not disinfect anything. It is coloured visible light, nothing more.

People also search for a purple screen app. You do not need one. This page is the whole thing: it opens in the browser you already have, it goes full screen, it costs nothing, and it leaves nothing on your device afterwards. An app for showing one colour is an app that wants permissions and screen space it has no use for.

If you want it to feel like an app, add this page to your home screen from the browser menu. It then opens with one tap, full screen, with no address bar. Turning the screen brightness down helps too, since a purple screen at full brightness in a dark room is brighter than most people want.

Other Colour Screens

Purple answers one question. These cover the rest of the panel.

  • Blue Screen

    Half of what makes purple, on its own, for checking the blue part.

  • Red Screen

    The other half, and the best background for a dark room.

  • Green Screen

    The channel purple leaves out, so this is the page that tests it.

  • White Screen

    The screen to compare against when you suspect a purple tint.

  • Gray Screen

    The best background for uneven brightness and burn-in.

  • Screen Color Test

    Steps through nine colours, purple included, one at a time.

Frequently Asked Questions

Why has my screen turned purple?

Purple is red and blue with the green missing, so something is dropping the green signal. On a desktop monitor that is nearly always the cable or the plug. Unplug both ends, check for bent pins, push them back in firmly and try a different cable.

How do I fix a purple tint on a Dell monitor?

Reseat the DisplayPort cable until the latch clicks, since a plug that is only part way in carries a picture but not all of the colour. If the tint stays, try a different cable, a different port, or HDMI to see whether the purple goes away.

Why is my Samsung A50 screen purple?

A purple or pink patch that spreads across a Galaxy A50 display is a fault in the AMOLED panel. It is widely reported on that model. No reset, cache wipe or software rollback fixes it, so the panel needs replacing.

Can a software update cause a purple screen on a phone?

It often looks that way, because the fault shows up soon after an update. Going back to the older software does not bring the screen back, though, which points at the panel rather than the software.

Why is my projector showing a purple screen?

Usually the cable or the connector. A VGA lead with one bent pin drops a colour, and a plug that is not screwed down works loose. Check the pins, push the plug home and try a different lead before you suspect the projector.

Is a violet screen the same as a purple screen?

On a screen, yes. Violet is a real wavelength of light and purple is not, but a display makes both the same way, with red and blue mixed and the green switched off. Violet just has more blue in the mix.

What does a purple screen test show?

Pixels stuck on green show as bright green dots, since green is the one channel purple leaves dark. Dead pixels show as black dots, and uneven colour shows as a purple that leans pink at one edge and blue at the other.

How do I get a purple screen wallpaper?

Use the Download PNG button under the preview and pick the size that matches your display. You get a flat purple image with no logo or watermark, and there is a tall size for phones.

Is a purple screen the same as UV light?

No. Screens cannot produce ultraviolet light, so a purple or violet screen will not do anything a UV lamp does. It is coloured visible light and nothing more.

Do I need an app for a purple screen?

No. This page opens full screen in the browser you already have. If you want it on your home screen, add it from the browser menu and it opens with one tap.

Open a Purple Screen

One button, one full screen of flat purple, and Escape to come back.

Free, no app to install, and it works on a monitor, laptop, tablet, phone or TV.

Open Purple Screen