The Best Colors for Display Testing
Why Color Testing Matters
Testing your display with different colors helps you spot dead pixels, color accuracy issues, and uniformity problems. Each color reveals specific issues, so it’s best to test with a variety.
Top Colors and What They Reveal
- White: Shows dead pixels (black dots) and backlight bleeding. Also reveals color temperature issues (yellow or blue tint).
- Black: Highlights backlight bleed and clouding. On OLED, it shows if pixels are truly off.
- Red, Green, Blue: These primary colors test the subpixels. Stuck pixels appear as a different color dot.
- Gray: Ideal for checking uniformity and color banding. A smooth gradient without lines is good.
How to Test Effectively
- Use a fullscreen tool: Display each color fullscreen to cover the entire screen.
- Test in a dark room: Ambient light can mask subtle issues.
- Look closely: Get close to the screen and scan for anomalies.
- Repeat: Test multiple times to confirm findings.
What to Look For
- Dead pixels – black dots on any color.
- Stuck pixels – always-on colored dots.
- Backlight bleed – light patches on black.
- Color tints – uneven colors across the screen.
Use a free tool like White Screen to cycle through these colors quickly. It’s a practical way to keep your display in top shape.