What Each Color Is Good At Revealing
White
- Best for revealing
- Dust, smudges, dead points, dim zones, contamination, and brightness inconsistency.
- Best next move
- If one point stays wrong, open Pixel Test. If the issue is broad and damage-like, open damage diagnosis.
Black
- Best for revealing
- Backlight bleed, IPS glow, clouding, pressure hotspots, and edge haze.
- Best next move
- If dark scenes expose fixed bright patches, open Backlight Bleed Test.
Gray
- Best for revealing
- Image retention, subtle blotches, uneven tone, banding, and dark patches.
- Best next move
- If the shape looks like retained UI, open Burn-In Test.
Red, green, and blue
- Best for revealing
- Point defects, stuck sub-pixels, and single points that fail to change correctly.
- Best next move
- If the same point stays wrong across RGB, open Pixel Test.
| Pattern | Best for revealing | Best next move |
|---|---|---|
| White | Dust, smudges, dead points, dim zones, contamination, and brightness inconsistency. | If one point stays wrong, open Pixel Test. If the issue is broad and damage-like, open damage diagnosis. |
| Black | Backlight bleed, IPS glow, clouding, pressure hotspots, and edge haze. | If dark scenes expose fixed bright patches, open Backlight Bleed Test. |
| Gray | Image retention, subtle blotches, uneven tone, banding, and dark patches. | If the shape looks like retained UI, open Burn-In Test. |
| Red, green, and blue | Point defects, stuck sub-pixels, and single points that fail to change correctly. | If the same point stays wrong across RGB, open Pixel Test. |
How to Use the Core Patterns Without Misreading the Result
Clean the screen first
White and gray exaggerate dust, oils, and protector marks. Remove surface causes before judging the panel.
Use fullscreen
Browser chrome, wallpapers, app backgrounds, and overlays can confuse the result.
Start with white, black, or gray
These broad patterns are fastest when the issue is unclear or area-shaped.
Switch to RGB for point-like issues
Red, green, and blue help decide whether one point is failing to change with the rest of the screen.
Move into the narrower test
The color page reveals the symptom; Pixel, Backlight Bleed, Burn-In, or damage pages classify it better.
What Common False Positives Look Like
Dust and smudges
They often look dramatic on white and almost disappear on black. Clean first.
Reflections
Dark patterns in bright rooms can create fake haze, glow, or blotches.
Overexposed photos
A phone camera can make black-screen issues look much harsher than they feel in normal use.
Wallpaper or app confusion
A real issue should stay visible on a clean fullscreen pattern, not only in one app or wallpaper.
What This Test Can Confirm and What It Cannot Prove
Which pattern shows the issue most clearly?
- This test can confirm
- Yes. That is the main job of this page.
- This test cannot prove
- It cannot decide the full diagnosis without the specialist test.
Is this point-like, dark-scene, or retention-like?
- This test can confirm
- It can strongly suggest which category fits best.
- This test cannot prove
- It cannot replace Pixel Test, Backlight Bleed Test, or Burn-In Test.
Is this pressure, water, or heat damage?
- This test can confirm
- It may make the symptom easier to see.
- This test cannot prove
- It cannot prove cause without damage history and symptom context.
| Question | This test can confirm | This test cannot prove |
|---|---|---|
| Which pattern shows the issue most clearly? | Yes. That is the main job of this page. | It cannot decide the full diagnosis without the specialist test. |
| Is this point-like, dark-scene, or retention-like? | It can strongly suggest which category fits best. | It cannot replace Pixel Test, Backlight Bleed Test, or Burn-In Test. |
| Is this pressure, water, or heat damage? | It may make the symptom easier to see. | It cannot prove cause without damage history and symptom context. |
Which Next Test to Open After This
Next diagnostic routes
Pixel Test
Use this when the same point stays black, bright, or fixed in one color across core colors.
Open Pixel Test
Backlight Bleed Test
Use this when black reveals fixed bright corners, edge haze, or clouding.
Open bleed workflow
Burn-In Test
Use this when gray reveals ghosted logos or UI shadows that may be retention or burn-in.
Open burn-in workflow
Damage diagnosis
Use this when the issue looks bruised, blotchy, spreading, or tied to pressure, water, or heat history.
Open damage diagnosis
Screen Color Test FAQ
Is this the same as a pixel test?
No. This page is the broad color and pattern launcher. It helps you see which pattern exposes the issue most clearly. If the issue is a specific point defect, Pixel Test is the narrower classifier.
Why are white, black, and gray all useful?
White is strong for dirt, dead points, and broad contamination. Black is strong for bleed and some pressure hotspots. Gray is often strongest for subtle unevenness, retention, and blotchy dark patches.
Do I need all six colors every time?
No. Start with the pattern that best matches the symptom. Use white, black, or gray for broad issues and red, green, and blue when you need to confirm whether a single point changes correctly.
Can this page diagnose the cause of a dark spot or bruise?
Not on its own. It shows which pattern makes the issue easiest to see. Cause diagnosis still belongs in the damage routes when pressure, liquid, heat, or symptom history matters.