15 tools · runs locally

Full Screen Color Tools

A solid, edge-to-edge fill is the simplest panel diagnostic there is. A pure white fill exposes dust and dark (dead) sub-pixels; a pure black fill exposes stuck-lit pixels, backlight bleed and IPS glow; the primaries isolate a single sub-pixel channel at a time.

White ScreenShow a pure white screen fullscreen to find dead pixels and dust, clean your monitor, or light your face on video calls.
Black ScreenShow a pure black screen fullscreen to find stuck pixels, backlight bleed, IPS glow and OLED burn-in, or blank a spare monitor at night.
Gray ScreenFill your display with neutral 50% gray (#808080) to spot clouding, dirty-screen effect, tint shifts, dust and OLED burn-in that white and black fills hide.
Red ScreenShow a pure red screen fullscreen to isolate the red sub-pixel channel, find red dead or stuck sub-pixels, or add warm red ambient light.
Green ScreenShow a pure green screen fullscreen as a chroma key background for video, or to test green sub-pixels.
Blue ScreenShow a pure blue screen fullscreen to test blue sub-pixels, check uniformity on a single channel, or use cool blue ambient light.
Yellow ScreenShow a pure yellow screen fullscreen to test red and green sub-pixels together, check for a blue tint, or add warm ambient light.
Orange ScreenShow a warm orange screen fullscreen for low-blue ambient light, mood lighting or photography accents, and to check red-green balance.
Purple ScreenShow a rich purple screen fullscreen for creative mood lighting, streaming backdrops and red-blue channel blending checks.
Pink ScreenShow a soft pink screen fullscreen for gentle ambient light, flattering video-call light or photography backgrounds, and to check pastel tone rendering.
Cyan ScreenShow a cyan screen fullscreen to test green and blue sub-pixels together, spot red stuck pixels, or add cool ambient light.
Magenta ScreenShow a vivid magenta screen fullscreen to test red and blue sub-pixels at full strength, spot stuck green pixels, or add bold creative light.
Lime ScreenShow a lime green (#32CD32) screen fullscreen to check mid-level green rendering, or as vivid ambient light.
Teal ScreenShow a teal (#008080) screen fullscreen to check darker green-blue tones and uniformity, or as calm, understated ambient light.
Warm White ScreenShow a warm white (#FFF5E1) screen fullscreen as soft, low-blue light for video calls, reading or evening use.

By Nayeem, Software Developer of fastsavemedia.comLast reviewed 1 October 2026

Full Screen Color Tools on FastSaveMedia, captured from the running tool — Screenshot of a color screen tool running in the browser.

What these tools cannot tell you

A solid fill shows what your eyes can see on the panel. It cannot measure brightness, colour accuracy or uniformity in numbers, and it cannot repair a dead pixel.

Frequently asked questions

Which color should I use to find dead pixels?

Start with white, then black. A dead pixel stays dark on white; a stuck pixel stays lit on black. Red, green and blue then show which sub-pixel is affected.

Can I download the color as a wallpaper?

Yes. Choose a resolution or type a custom width and height in the tool panel, then press Download to save a PNG generated in your browser.

Does a color screen work on a TV?

Yes. Open the page in the TV browser or cast the tab, then use fullscreen. Turn off picture modes such as dynamic contrast for a fairer view.

What these tools cannot tell you

Frequently asked questions

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