Gray Screen | 50% Gray Monitor Uniformity Test

Press Space for colors • C for controls

Click to Fullscreen

Settings

HEX: #FFFFFF

RGB: rgb(255, 255, 255)

HSL: hsl(0, 0%, 100%)

Brightness100%

Color Temperature0

CoolWarm

Gradient Mode

Resolution Preset

Width

Height

Look for uneven patches, vignetting, or a dirty screen effect. The panel should appear as one smooth grey.