Pure Green Screen

This is a free pure green screen, the brightest, most saturated green a display can produce. It is the green primary itself, the green channel turned all the way up with red and blue switched off completely. Press F11 for fullscreen and your whole display becomes solid, vivid green. Press Esc to exit. It is different from a chroma key green: this is pure green at maximum, the one people look up by its hex code, used for testing screens, checking the green subpixel and casting a strong green light.

How to Use the Pure Green Screen

1. Open this page on a monitor, laptop, phone or TV browser.
2. Press F11 for fullscreen so pure green fills the display with nothing on top.
3. Press Esc to exit when you are done.

Pure Green vs Chroma Key Green: Which One Do You Want?

This matters, because they are not the same green and they are used for different things.

• Pure green #00FF00 is the maximum brightness RGB primary. It is the right choice for display testing, the green channel check, and bright green light or effects, anywhere you want the most intense green a screen can make.
• Chroma key green, around #00B140, is a slightly duller broadcast green made for video keying, removing a background in OBS, Zoom or an editor. It is less reflective, so it spills less green onto the subject, which is why studios use it.

If you came here to film yourself and replace the background, the duller chroma tone is actually better, so use our green screen for chroma key. If you want the brightest possible pure green for a test or an effect, you are in the right place.

Pure Green for Display and Subpixel Testing

Pure #00FF00 is one of the most useful test colors for a screen, because it lights only the green subpixels and nothing else. Every pixel on the panel is driven to full green, which makes faults easy to spot:

• Dead or stuck subpixels. A tiny dot that stays dark on this solid green, or that shows red or blue against it, points to a subpixel fault. Cycle this page with a pure red and blue screen to test all three color channels in under a minute.
• Green tint and uniformity. Patches that look lighter, darker or off color against the even green reveal uniformity problems or a panel whose color has drifted.
• The brightest channel. Green is the channel the human eye is most sensitive to and the one screens drive brightest, so a full green field is a strong, revealing test pattern for checking panel evenness.

For a full pixel check, start with the black screen for stuck pixels and the white screen for dead pixels, then use this pure green to test the green channel on its own.

Bright Green Light and Effects

Because pure green is the most intense green a display can show, it is also the one to reach for when you want green as a light or an effect:

• A strong green glow from a monitor or TV for gaming setups, parties or themed lighting, bolder and more electric than a softer green.
• Photo and video effects that call for vivid, punchy green rather than the muted chroma tone.
• A bright color reference when you simply need true, maximum green on screen.

For gentler, mood style green lighting you might prefer a softer shade, but for maximum punch, pure #00FF00 is the brightest green there is.

Pure Green on OLED vs LCD

On an OLED screen, #00FF00 lights only the green subpixels while red and blue stay completely off, so the green is exceptionally pure and the panel uses less power than showing white. On an LCD, the white backlight stays on behind color filters, so a little non green light leaks through and power use barely changes. Either way the green looks vivid, but OLED shows the truest, most saturated version of #00FF00.

Frequently Asked Questions

What is the hex code for pure green?

Pure green is #00FF00, which is rgb(0, 255, 0), the green channel at its maximum with red and blue at zero. In web colors this exact green is officially named "lime", while the CSS color named "green" is a darker #008000.

What is the difference between pure green and chroma key green?

Pure green #00FF00 is the brightest RGB green, best for display tests and bright green effects. Chroma key green, around #00B140, is a slightly duller broadcast green made for video keying because it spills less green onto the subject. For removing a background, use the chroma green; for maximum brightness, use pure green.

Why is #00FF00 called lime and not green?

In the web color standard, #00FF00 was named "lime", and the name "green" was given to the darker #008000. It is a quirk of how the colors were defined, so the bright green most people picture is technically lime by its official name.

How do I use pure green to test my screen?

Go fullscreen on this page and look for any dots that stay dark or show another color against the solid green, which indicates a subpixel fault, and any patches that look uneven, which indicates a tint or uniformity issue. Compare with pure red and blue screens to check all three channels.

How do I make it fullscreen?

Press F11 in your browser, or use the browser's fullscreen option, so pure green fills the screen. Press Esc to exit.

Does a pure green screen save battery?

On OLED, somewhat, since only the green subpixels light up and red and blue stay off. On LCD the backlight stays fully on, so savings are minimal.

Is this pure green screen free?

Completely free. No account, no download and no watermark, and it works fullscreen on any device.

Related screens: For video background removal, the chroma key green screen · Test the other two color channels with the red screen and blue screen · Pure darkness is the black screen