Gray Screen
Click fullscreen or press F for full screen mode
Resolution
Custom Color
100%
Neutral
Cool Warm
Prevents screen sleep
Prevents burn-in on OLED
Pixel Grid
Settings
White Screen.imWhat is a Gray Screen?
A Gray Screen is a fullscreen gray display that turns your monitor, tablet, or phone into a neutral gray light source. The default mid-gray used here is #808080 with RGB (128, 128, 128), which is a standard neutral gray value.
Gray screens are widely used in display testing because uniform gray makes brightness variation, banding, and panel defects easier to notice. Gray levels and gradients are also helpful for checking smooth tonal transitions and overall screen uniformity.
If you are running a gray screen test or grey screen test, start with mid-gray, then try darker gray shades. Different gray levels can make dirty screen effect, backlight bleed, and subtle panel unevenness easier to compare.
Popular Gray Screen Use Cases
Screen Uniformity Checks
A uniform Gray Screen helps reveal backlight bleed, cloudy patches, and uneven brightness across the panel. This is a common test when evaluating monitors or TVs for uniformity.
Banding & Gradient Tests
Gray Screen tones and gradients are useful for spotting banding or abrupt steps between tones. This helps confirm that your screen renders smooth transitions.
Defect & Pixel Inspection
A consistent Gray Screen background makes dust, scratches, and pixel defects easier to notice compared with highly saturated colors.
Neutral Backgrounds
Use Gray Screen as a neutral backdrop for design mockups, presentations, or photography where a balanced, non-distracting background is preferred.
How to Use Gray Screen
- 1Pick a Shade: Choose a preset color or open the custom picker for a specific gray tone.
- 2Go Fullscreen: Click the screen or use the fullscreen button. On desktops you can also press F11 for fullscreen mode.
- 3Adjust Settings: Tune brightness and color temperature to match your room or camera.
- 4Save or Share: Download a Gray Screen image in 1080p, 4K, or custom resolution.
Gray Screen Test for Monitor Uniformity
A gray screen test is most useful when you want to judge how evenly a monitor, laptop panel, TV, or phone displays neutral tones. White can be too bright for subtle issues, while black can hide mid-tone banding. Gray sits between them, so it often reveals uneven patches more clearly.
Mid-Gray Uniformity
Use the default #808080 gray to check for cloudy areas, uneven brightness, and dirty screen effect across the center and edges of the display.
Dark Gray Screen Test
Try a darker gray shade when you want to inspect backlight bleed, edge glow, and low-brightness uniformity without using a completely black screen.
Compare with Guides
For a fuller workflow, compare this page with the screen uniformity test guide and the screen color test guide.
Gray Screen Advanced Features & Tools
Adjustable Brightness
Fine-tune brightness from low glow to full intensity for uniformity checks, filming, or ambient lighting.
Color Temperature Control
Shift between cooler and warmer tones to dial in the gray look you want for cameras or ambient conditions.
OLED Burn-in Protection
Enables subtle brightness variation to help reduce burn-in risk on OLED screens during long Gray Screen sessions.
Keep Awake Mode
Keeps your display from sleeping during long testing or extended sessions using the Wake Lock API.
Pixel Grid Overlay
Toggle a grid to locate problem pixels precisely while testing gray tones.
High-Resolution Downloads
Download Gray Screen images as PNG files in common sizes or custom resolutions, including up to 8K.
Frequently Asked Questions (FAQ)
What is Gray Screen used for?
Gray Screen is commonly used for uniformity checks, banding tests, and defect inspection on monitors or TVs. A neutral gray background makes uneven brightness easier to notice.
Does a gray screen help find backlight bleed?
Yes. Mid-gray levels are often used to identify backlight bleed, clouding, or dirty screen effect on LCD panels.
How do I enter or exit fullscreen?
Click the main display to enter fullscreen. To exit, press Esc or use your browser shortcut, such as F11 on many desktops.
Can I download a gray image?
Yes. Use the download controls to save a gray PNG in sizes like 1080p, 4K, or custom resolutions up to 8K.
Can I choose a specific gray shade?
Yes. Gray Screen includes a color picker with RGB and HEX inputs so you can match an exact shade.
What is a gray screen test?
A gray screen test displays a neutral gray color across the whole screen so you can check panel uniformity, dirty screen effect, banding, and brightness differences.
Is grey screen test the same as gray screen test?
Yes. "Grey screen test" and "gray screen test" describe the same type of display check. The spelling changes by region, but the testing method is the same.
When should I use a dark gray screen test?
Use a dark gray screen test when you want to inspect backlight bleed, edge glow, low-brightness uniformity, or subtle panel patches that may not appear clearly on pure white.
Can gray screen test monitor uniformity?
Yes. A gray screen is one of the easiest ways to check monitor uniformity because uneven brightness and color tint are easier to compare against a neutral mid-tone background.
Which gray color is used by default?
The default gray color is #808080 (RGB 128, 128, 128), which is a standard neutral gray value.