Screen Color Test
Pure sRGB color diagnostics testing individual subpixel channels and primary/secondary color balance.
Diagnostic Sequence Preview
This test automatically cycles through calibrated solid color surfaces.
What to Look For
Every physical pixel on your screen is composed of individual subpixels. This test illuminates pure Red (#FF0000), Green (#00FF00), Blue (#0000FF), Yellow (#FFFF00), Cyan (#00FFFF), and Magenta (#FF00FF) fields to verify each channel operates at full intensity.
- Subpixel dropouts where a specific color channel fails to illuminate.
- Color tinting or uneven hue across different sectors of the screen.
- Warm or cool color shifts between top and bottom edges.
- Color saturation and purity without unwanted desaturation or artifacts.
Display Preparation Tips
- 1Turn off any blue-light filter or warm color temperature adjustments.
- 2Ensure your graphics card driver is outputting full dynamic range (0-255 RGB).
- 3Inspect each solid color field for uniform luminance.
- 4Use keyboard arrows to step through colors at your own pace.
Frequently Asked Questions
Why are Red, Green, and Blue tested separately?
Since modern displays mix red, green, and blue light to create all colors, isolating each color channel lets you pinpoint which specific subpixel transistor is defective.
What do Cyan, Magenta, and Yellow test?
These secondary colors combine two primary subpixel channels (e.g. Cyan = Green + Blue). They reveal whether subpixel pairs blend correctly.
Ready to Check Your Screen?
Launch full-screen diagnostics right now to verify pixel health, backlight uniformity, and color fidelity across your entire display.
Start Free Screen Test