Brightness Test
Use the grayscale bands below to test your screen's brightness and contrast.
You should be able to distinguish between each shade of gray. If you cannot, your screen's brightness or contrast may need adjustment.
About the Brightness Test
This tool helps you visually inspect your screen's brightness and contrast levels. It displays a gradient of grayscale colors to help you determine if your monitor is calibrated correctly.
Frequently Asked Questions
How do I use this tool?
Adjust your monitor's brightness and contrast settings until you can see a clear difference between each of the gray shades in the band above.