Click to Enter Fullscreen Test
Check for dead pixels, bright spots and dark spots
Why Choose Our Color Test
12-color fullscreen + custom color picker — comprehensive professional screen color evaluation across the full gamut
12 Fullscreen Pure Colors
Covers RGB primaries, CMY complementary colors, and black-white-grey steps — one color system for complete display color reproduction assessment.
Custom HEX Color Picker
Built-in color picker and HEX input lets you test any brand color or industry-specific color (skin tones, sky blue), with precision evaluation on demand.
Zero Install, Zero Data
Runs purely in the browser. No plugins, no data uploads. Close the tab and you're done. Works on phones, computers, and TVs.
What Is a Screen Color Test
A screen color test evaluates display color reproduction, uniformity, and saturation by showing standard pure colors in fullscreen.
Color Bias Detection
On a pure white screen, check whether the display has a yellow, blue, or green tint. Color bias is usually caused by incorrect color temperature settings, factory white balance calibration deviation, or panel aging, affecting both daily viewing and professional design accuracy.
Uniformity Detection
Check whether brightness and color are consistent across all screen areas on solid color backgrounds. Dark corners with a brighter center indicate backlight non-uniformity; localized color patches may be panel defects or driver board issues.
Saturation Detection
On pure red, green, and blue screens, judge whether colors are vivid and pure. Washed-out, muddy colors indicate insufficient panel gamut coverage — unsuitable for professional color work.
How to Run a Screen Color Test
Follow these steps for a professional color evaluation in 3 minutes
Prepare Environment
Set brightness to maximum. Turn off eye comfort mode, night mode, and blue light filter. A dimly lit environment yields the best results.
Fullscreen Color Cycle
Click a color preview to enter fullscreen. Use arrow keys to cycle through 12 pure colors. Stay on each color for 5 seconds, slowly scanning the entire panel.
Custom Color Test
Use the custom color picker to enter specific HEX values (brand colors, skin tones). Compare render quality in fullscreen.
Color Performance by Panel Type
IPS Panel
High color accuracy with wide viewing angles (178°). Gamut typically covers sRGB 99%+. Ideal for design, photography, and daily office use. Drawback: lower contrast with greyish blacks.
VA Panel
High contrast (3000:1+) with deep blacks and rich shadow detail. Good gamut coverage but narrower viewing angles — noticeable color shift from the side. Suited for movies and gaming.
OLED Panel
Self-emitting pixels with near-infinite contrast. DCI-P3 99%+ coverage with extremely vivid colors. However, prolonged static content may cause burn-in — regular burn-in checks recommended.
TN Panel
Fastest response time, suitable for competitive gaming. But high color deviation and extremely narrow viewing angles — worst color test performance. Not recommended for any color-sensitive work.
Color Test Use Cases
Color requirements and test priorities for different scenarios
New Device Inspection
Test colors immediately after receiving a new monitor, laptop, or phone. Confirm no color bias or color patches before the return window closes.
Used Device Check
Before buying a used monitor or laptop, use fullscreen solid colors to assess aging — faded colors, non-uniformity, and dark corners are common used-screen issues.
Pre-Calibration Assessment
Before using a colorimeter, run a color test to roughly assess the panel baseline. If the panel itself has poor gamut or uniformity, calibration cannot compensate for hardware limitations.
Regular Maintenance
Run a color test every 3-6 months to track panel aging. OLED screens especially need monitoring for long-term color degradation.
More Color Testing Tools
Use together for comprehensive screen color evaluation
Color Accuracy
Standard color card comparison, ΔE evaluation
Color Gamut
P3 vs sRGB wide gamut test
Color Banding
Gradient banding & panel bit depth test
Color Calibration
White balance & Gamma calibration guide
sRGB Color Test
24-patch standard color card verification
Contrast Test
Shadow & highlight detail discrimination
Screen Color Test FAQ
Q.What's the difference between color test and color accuracy test?
Color test is a subjective visual check using fullscreen pure colors — great for quick assessment of bias, uniformity, and saturation. Color accuracy test uses standard color cards with quantified ΔE metrics for higher precision. Best used together.
Q.Why does my screen's white look yellowish?
Common causes: ① Color temperature set too warm (<6500K); ② Eye comfort/night mode not disabled; ③ Panel aging causing blue light decay; ④ Ambient light interference (warm-toned light reflection). Rule out software settings first, then assess hardware aging.
Q.Can I use this on a phone?
Absolutely. The tool supports fullscreen mode and works with phones, tablets, laptops, monitors, and TVs. Mobile users can swipe left/right to change colors. Test with auto-brightness off and screen brightness at maximum.
Q.What if the color test finds problems?
① Confirm it's not a software setting (color temp, eye comfort mode); ② Use color accuracy test to quantify severity; ③ If new, contact support within warranty; ④ Minor bias can be adjusted via system color profiles or a colorimeter.
Q.When should I run a color test?
Immediately with new screens; before used device purchases; after installing new GPU drivers; when colors change noticeably after system updates; regular maintenance every 3-6 months.
Q.Can calibration fix a low-gamut screen?
Calibration only adjusts accuracy within the existing gamut — it cannot extend the panel's physical gamut coverage. If color tests show washed-out, unsaturated colors, the panel's gamut coverage is limited and a higher-spec display is needed.
Testing Tips
Max Brightness
Set brightness to 100% before testing. Low brightness compresses color performance and doesn't reflect the panel's true capability.
Disable Post-Processing
Eye comfort, night mode, blue light filter, HDR enhancement — all post-processing effects interfere with color test results. Turn them all off.
Dark Room
Ambient light causes screen reflections and interference. Dark tests (pure black, pure blue) are best observed in a dark room.
Multiple Angles
Besides viewing head-on, check from a 45° side angle. The viewing angle difference between IPS and VA panels is most apparent from the side.