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Check for dead pixels, bright spots and dark spots
Grey Screen Test
A 50% grey field is the classic midtone reference — find banding, tint, and uneven brightness that pure white or black can hide. Fullscreen on any modern browser, then download a grey PNG when you need a neutral still.
Grey Screen Test
A 50% grey field is the classic midtone reference — find banding, tint, and uneven brightness that pure white or black can hide. Fullscreen on any modern browser, then download a grey PNG when you need a neutral still.
Banding detection
Mid-grey reveals step-wise banding on 6-bit+FRC and weak 8-bit panels that busy images conceal. Scan left-to-right for stepped stripes.
Gamma and midtone check
50% grey is a standard midpoint for judging whether midtones look crushed or washed after a profile or picture-mode change.
Neutral uniformity
Compare corners to center for clouds or tint shifts on a neutral field — easier to judge than on saturated primaries.
Presentation backgrounds
Neutral grey reduces distraction for slides and design reviews — download a PNG at 1080p through 8K.
About Grey Screen Test
Use a free fullscreen grey screen test to spot banding, gamma issues, and midtone uniformity on monitors, phones, tablets, and TVs.
Why mid-grey finds banding
A 50% grey (#808080) target sits midway in 8-bit sRGB. Panels that dither or expand 6-bit color often show visible bands on flat greys even when photos look fine.
Grey versus white and black
White finds dark dead pixels; black finds bright stuck pixels and bleed; grey finds midtone banding and tint. Skip grey and you miss a common RMA dispute on budget panels.
Grey or gray?
Same color — TestMyGears uses grey in titles and URLs for consistency across the site.
How to use the grey screen
A 50% grey field is the classic midtone reference — find banding, tint, and uneven brightness that pure white or black can hide. Fullscreen on any modern browser, then download a grey PNG when you need a neutral still.
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Open this grey screen page in any modern browser…
Open this grey screen page in any modern browser on desktop, phone, tablet, or TV.
Tip Use ← → to switch colors in the picker
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Enter fullscreen for a solid mid-grey (#808080) b…
Enter fullscreen for a solid mid-grey (#808080) background without browser chrome.
Tip Press F or click the preview for fullscreen
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Look for horizontal/vertical banding, color tint,…
Look for horizontal/vertical banding, color tint, or patchy grey — then compare with white and black pages for a three-point pass.
Tip Press Esc to exit fullscreen
Core testing tools
Continue your display QA with these linked diagnostics.
Dead pixel test → Solid-color fullscreen frame-by-frame scan. Detects bright, dark, and stuck pixels — the essential first step. Backlight bleed test → Pure black fullscreen in a dark room to detect LCD leakage and IPS glow. Color calibration test → Gamma ramps and greyscale steps for accuracy checks. Color gamut test → sRGB vs Display P3 patches for wide-gamut verification. Refresh rate test → Real-time Hz detection to verify your panel's actual refresh rate. Ghosting test → Moving blocks for response time and grey-to-grey transition speed. Uniformity test → Grey fields and grid overlay for vignette and tint checks. Display test center → Hub for customizable display QA — gradients, HDR, flicker, and more.
Grey screen tips
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Why mid-grey finds banding
View straight-on first, then tilt slightly. Bands that stay fixed are panel/processing; strong angle-only shifts may be normal for the technology.
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Grey versus white and black
Disable dynamic contrast and vivid modes for a fair grey test, then re-enable for everyday viewing.
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Grey or gray?
After grey, open purple, black, and white Color Pages when you need dedicated deep-dive checks beyond midtones.
Specialized testing workflows
Step-by-step guides for devices, panel types, and color testing.
Fullscreen color test guide → Setup checklist, color sequence, and common mistakes for solid-field QA. Dead pixel how-to → White, black, and RGB passes with return-window documentation tips. Screen uniformity guide → Grey-field vignette, banding, and dirty-screen effect checks. Resolution & DPR guide → Verify native pixels, viewport, and device pixel ratio before pixel tests. Laptop screen test → 8-step laptop inspection flow. PWM flicker, gamut issues, and panel lottery — all covered. Mobile screen test → OLED burn-in, touch dead zones, PWM flicker — essential for used phone inspection. TV screen test → Mini LED blooming, backlight bleed, MEMC checks — must-do after new TV unboxing. Monitor screen test → IPS, VA, and OLED panel testing, PPI verification, and G-Sync/FreeSync validation. OLED screen test → Burn-in, PWM, ABL, black crush — comprehensive OLED-specific issue coverage. LCD screen test → IPS bleed, VA ghosting, Mini LED blooming — complete LCD panel evaluation.
More screen tools after Grey
Choose a solid color for pixel tests, monitor cleaning, chroma key checks, or ambient lighting.
Grey screen FAQs
What is a grey screen test?
A grey screen fills the display with mid-grey so you can spot banding, gamma issues, and midtone tint. TestMyGears offers a free grey screen online.
Why 50% grey?
Mid-grey is a standard pattern for banding and gamma on consumer displays — bright enough to see structure, dark enough to stress midtones.
Can I download grey wallpaper?
Yes — export PNG at 1080p, 4K, 8K, or custom size from the tool on this page.
Grey vs gray spelling?
Same color. We use grey in URLs and titles for consistency across TestMyGears.
Is grey good for dead pixels?
Use white and black first for dead and stuck pixels. Grey is best for banding and midtone tint — run all three for a complete pass.
What should a good grey screen look like?
Even tone without obvious bands or color cast from center to corners at normal viewing distance.
Why disable dynamic contrast?
Dynamic modes can lift or crush midtones and fake uniformity. Test in a standard SDR mode, then return to your preferred picture setting.
Free to use?
Yes — no account required.
Grey Screen Test
A 50% grey field is the classic midtone reference — find banding, tint, and uneven brightness that pure white or black can hide. Fullscreen on any modern browser, then download a grey PNG when you need a neutral still.
