Output
Steady colors, steps or fine-line patterns
UserBenchmark / All Tools / Screen Color Test
Display
Screen Color Test
Inspect solid colors and gradients for tint and banding.
Free to useNo downloadNo sign-up
Screen Color Test · At a glance
Quick answer: Inspect solid colors and gradients for tint and banding. Banding can come from panel depth, dithering, browser color management or the output path.
Screen Color Test
The test loads when you open it. Device access is requested only after you choose to start.
Detailed guide
How to use this tool
- Cycle solid RGB colors and the grayscale gradient.
- Inspect both broad tint changes and smooth tonal transitions.
Input
Manual visual inspection
Browser requirement
Native resolution; fullscreen support
Processing
Runs on your device; no tool-result upload
How it works and what the result means
These are visual inspection patterns. The page cannot read individual panel pixels, measure nits or contrast ratio, diagnose a panel automatically, or repair dead pixels.
Reading the result
Banding can come from panel depth, dithering, browser color management or the output path. Visual appearance alone does not isolate the cause.
Worked example and assumptions
Solid RGB colors and a smooth grayscale gradient
Inspect color purity and banding by eye. A smooth signal can still show panel dithering or browser/color-management behavior.
Inspect color purity and banding by eye. A smooth signal can still show panel dithering or browser/color-management behavior.
What to check next
Keep picture mode fixed and disable aggressive dynamic processing for a controlled comparison. Inspect the actual screen rather than a compressed photo.
Use native screen resolution and 100% browser zoom for fine patterns. Disable adaptive brightness for comparisons. PWM inspection needs an external camera; banding can also be a camera artifact.
Frequently asked questions
Does a smooth gradient prove accurate color?
No. Smooth transitions do not establish color accuracy, white point or gamut coverage. Those need a measured reference.
How do I start the Screen Color Test?
Choose a pattern and open fullscreen. Inspect the entire panel, then click to cycle patterns. Press Escape to leave fullscreen.
Does this tool require a download or an account?
No. Open the interactive tool above in a modern browser. The instructions and explanations are available even with JavaScript disabled; running a test needs JavaScript.
Why can two attempts give different results?
Power settings, background tasks, browser scheduling, operating-system input processing and device settings affect measurements. Compare repeated attempts with identical settings rather than the single highest score.