Blue Screen
Fill your display with solid blue in one click. Use it as a blue screen for chroma key when green will not work, to check a screen's blue subpixels, or download a plain blue image.
Blue
100% is as bright as your screen allows.
Click the preview to fill your screen. Move the mouse or tap to show the controls, or choose Hide to keep them away until you click or tap. In full screen, use the left and right arrow keys to change color, the up and down arrow keys to change brightness, H to hide or show the controls, and Esc to exit.
What the blue screen does
It covers your whole display with pure blue (#0000FF), lighting only the blue part of every pixel. With the controls hidden, nothing else is left on screen.
It is a plain color page. It is not the Windows error screen, and it does not change anything on your computer.
Why use our blue screen
- ·Solid blue, edge to edge. Full screen with no browser bars, controls, or pointer.
- ·Your shade of blue. Type any hex code, from navy to sky blue.
- ·Blue images. Save a solid blue PNG at a video, phone, or custom size.
- ·Free and private. Nothing to install, and nothing leaves your browser.
How to make your screen solid blue
- 1
Pick the blue
Pure blue (#0000FF) loads with the page. Type a different hex code into the color box if you need another shade.
- 2
Open full screen blue
Click the preview. Blue fills the display, and the controls fade after about a second.
- 3
Clear the screen
Choose Hide or press H so the controls stay away while you film, check the screen, or use it as a light.
- 4
Close it
Press Esc. On a touch screen, tap once to show the controls and tap Exit.
When to use a blue screen instead of green
Blue screen keying works the same way as green: the editor removes every pixel of the key color. Blue makes more sense when:
- ·The subject is green. Plants, green clothing, green packaging, or a green logo would vanish against a green screen.
- ·The scene will be dark or blue. Any blue light that spills onto the subject blends into a night or underwater background more naturally than green.
Cameras record less detail in blue than in green, so a blue screen usually needs to be brighter on camera to key cleanly. Keep the brightness slider high, and lower it only if the screen starts to glow or throw blue light on your subject. For most other shots, the green screen is the easier choice.
Looking for help with the Windows blue screen error?
The Windows "blue screen of death" is a stop error. Windows shows it when something goes badly wrong, often a driver, a hardware fault, or a bad update, and then restarts. This page cannot cause or fix it, but these first steps help:
- ·Write down or photograph the stop code on the error screen, such as CRITICAL_PROCESS_DIED. It points to the cause.
- ·Think about what changed just before it started: new hardware, a new driver, or a recent update. Undoing that change often stops the crashes.
- ·Search for the stop code on Microsoft's support site for steps specific to that error.
Who uses a blue screen
- ·Video makers. Key out a phone or monitor screen when the shot has too much green in it.
- ·People checking a display. See whether blue looks even across a monitor, TV, or projector, and spot blue subpixels that are dead or stuck.
- ·Photographers. Light a small scene with cool blue from a tablet held out of the shot.
- ·Designers. Download a blue PNG in a brand color as a plain background.
Frequently asked questions
- How do I make my screen blue?
- Click the blue preview above. The page goes full screen and fills your whole display with solid blue. Choose Hide or press H if you want the controls gone too.
- Is this the Windows blue screen of death?
- No. This page only shows a plain blue color and cannot crash or change your computer. The Windows blue screen is an error screen that appears after a serious system crash. See the section above for what to do if you are seeing one.
- Should I use a blue screen or a green screen for chroma key?
- Green is the usual choice because cameras record green with the most detail. Pick blue when your subject has green in it, such as plants, green clothing, or a green logo, since anything green would be removed along with a green screen.
- What blue should I use for blue screen keying?
- Any strong, even blue works with most chroma key tools, and pure blue (#0000FF) is a good start. If your software or a template asks for a particular blue, type its hex code into the color box.
- Why does my blue screen look dim?
- Pure blue looks much darker to the eye than pure green or white at the same brightness. A blue light filter, such as Night light on Windows or Night Shift on Apple devices, also cuts blue and makes it look duller. Turn the filter off and raise your screen brightness.
- Is a bright blue screen bad to use at night?
- Bright blue light at night is the kind most linked to making it harder to fall asleep, so a blue screen is a poor choice for a night light. Use a dim red screen instead.
- Can I download a blue image?
- Yes. Under Download image, pick 1080p, 4K, Phone, Square, or type your own width and height, then choose Download PNG. You get one solid blue PNG in the shade and brightness you picked.
- How do I close the blue screen?
- Press Esc, or click or tap once and choose Exit. The blue screen is free, needs no signup, and runs entirely in your browser.