GRADIENT SCREEN TEST
CHOOSE TYPE
LUMA black to white.
RGB full colour sweep.
SAT grey to saturated colour.
GRADIENT DIRECTION
CHOOSE DIRECTION
HORIZ tests left-to-right transitions.
VERT tests top-to-bottom transitions.
TIP use both for best coverage.
START GRADIENT
LAUNCH CONTROL
CLICK gradient output to exit.
ESC exits overlay or fullscreen.
USES & RELATED TESTS
USES
Check visible steps in smooth gradients.
Find tint shifts across the screen.
Compare centre, corners and edges.
TIP try horizontal and vertical tests.
RELATED TESTS
HOW TO USE GRADIENT TEST
BASIC USE
Choose a gradient type.
Choose horizontal or vertical.
Press START or FULLSCREEN.
Click the gradient to exit.
WHAT TO LOOK FOR
Visible steps in smooth fades.
Colour tint at edges.
Uneven brightness patches.
Stripes or abrupt transitions.
DEVICE TIPS & SEARCHES
DEVICE TIPS
Use native display resolution.
Disable night mode temporarily.
Try mid brightness first.
Check from normal distance.
COMMON SEARCHES
gradient screen test
monitor gradient test
display banding test
screen uniformity test
BANDING GUIDE
WHAT IS BANDING?
Banding is visible tone stepping.
It can appear in grey fades.
It can appear in colour sweeps.
It is easier to see in full screen.
POSSIBLE CAUSES
Panel bit depth limits.
Compression or processing.
Extreme contrast settings.
Browser or OS colour handling.
BANDING METHOD
TEST METHOD
Start with LUMA horizontal.
Try LUMA vertical next.
Then try RGB and SAT.
Compare against banding test.
SEARCH INTENT
colour banding checker
black to white gradient test
screen banding checker
monitor banding test
GRADIENT TYPES
LUMA GRADIENT
Black to white fade.
Best for grey banding.
Good for brightness uniformity.
Useful first test.
RGB GRADIENT
Red, yellow, green, cyan, blue.
Checks colour transitions.
Highlights hue shift.
Useful after solid RGB tests.
SATURATION & DIRECTION
SATURATION GRADIENT
Grey to strong colour.
Checks saturation handling.
Helps reveal colour clipping.
Useful for display tuning.
DIRECTION
Horizontal tests left to right.
Vertical tests top to bottom.
Some defects show on one axis.
Use both for best coverage.
TROUBLESHOOTING
FULLSCREEN ISSUES
Browsers require a click.
Try FULLSCREEN again.
ESC exits fullscreen.
Mobile browsers vary.
IMAGE LOOKS WRONG?
Turn off night shift.
Disable strong contrast modes.
Check HDR settings.
Try another browser if unsure.
PAGE CONTROLS & PRIVACY
PAGE CONTROLS
Arrow keys move help pages.
ESC returns to page one.
Click gradient output to exit.
Space starts selected gradient.
PRIVACY
No files are loaded.
No data is uploaded.
The tool only changes display output.
Runs fully in the browser.
RELATED SCREEN TOOLS
COLOUR TESTS
PATTERN TESTS
PARENT LINKS & INDEXING
PARENT LINKS
INDEXING SUMMARY
Canonical URL: /gradient-screen-test/
Page purpose: gradient display test.
Previous: 765 Blue Screen.
Next: 767 Dead Pixel Test.