ScreenCheckup
YOUR DISPLAY, UNDER A CLOSER LOOK

Monitor color test.

Compare solid screen colors and gray shades with one click.

↗ No installation◉ Visual inspection⌂ Stays on your device
Color screen testMANUAL CHECK
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WhiteRGB 255, 255, 255
YOUR TEST PATTERN

Start with white.

Select a color, then give it the whole screen.

← → Switch colorsEsc ExitF Fullscreen

Tap the pattern to show controls. No automatic cycling or flashing.

◎ You inspect the physical screen. Nothing is scanned or uploaded.Go at your own pace ↗
YOUR EYES. YOUR NOTES.

Keep a little record.

Save what you noticed, so you can compare later. One record per test, stored only in this browser.

⌂ Local to this device

No automatic result. Choose only what you actually observed.

A MORE FOCUSED LOOK

Something specific on your mind?

Choose a check for what you’re seeing.

Browse all screen tools →
TAKE A MINUTE. TAKE A CLOSER LOOK.

How to compare display colors by eye

You do the observing.
We provide the patterns.

  1. 01

    Turn off strong night-light filters and avoid reflections for a visual comparison.

  2. 02

    Select RGB primary colors, then CMY secondary colors, white, black, purple, or violet.

  3. 03

    Check for a visible tint or patch. Compare again at normal viewing brightness.

  4. 04

    For accurate color calibration or Delta E measurement, a browser test is not a substitute for a colorimeter and calibration workflow.

BEFORE YOU DRAW A CONCLUSION

Your screen check questions

Can this monitor color test calibrate my screen?

No. It displays solid digital colors. It has no colorimeter input and cannot measure color error or write a calibration profile.

Why show cyan, magenta, and yellow?

They add secondary-color fields alongside red, green, and blue for a visual comparison. Seeing them does not measure gamut or certify color accuracy.

Does a display color test set a standard white point?

No. The result depends on your display, browser, color profile, brightness, and any active viewing filters.

Can I use a monitor color test image or video?

This page shows solid color fields directly in the browser instead of a compressed video or downloaded image. It helps you compare appearance by eye but does not measure color accuracy.

Does this monitor color test measure sRGB coverage?

No. It displays RGB and secondary-color values. Measuring sRGB gamut coverage or color error requires suitable measurement equipment and a color-managed workflow.

Why does my monitor look purple?

Compare the same page on another device and inspect a white or gray field with strong color filters turned off. The cause can be a setting, software, connection, or display issue; these color patterns cannot identify it.

MAKE SENSE OF WHAT YOU SEE

Put your observation in context.

Compare the clues, then return to the tool to repeat your check.

Instructions source-checked · Apple: color management and OLED display behavior. Manufacturer guidance explains the concepts; it does not certify this tool or your panel.

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