Monitor Color Test: How to Check Colors

Colors look washed out, overly saturated, or just off? Whether you're editing photos, designing, or simply want your games and movies to look right, a quick monitor color test tells you whether your screen is showing colors accurately — and a few tests can reveal problems you'd never notice otherwise, like banding and stuck pixels. Here's how to test and calibrate your monitor's colors.

What Is a Monitor Color Test?

A monitor color test is a set of full-screen or pattern images designed to expose how your display reproduces color — solid colors to find pixel defects, gradients to find banding, grayscale ramps to find tint, and reference photos to judge overall accuracy. It's the first step before any calibration: you can't fix color you haven't measured.

How to Test Your Monitor's Colors

Run through these in order, each checking a different aspect of color performance.

1. Solid color screens (find dead and stuck pixels)

Full-screen solid colors make pixel defects obvious. Cycle through red, green, blue, white, gray, and black and scan for dots that stay the wrong color (stuck pixels) or stay black (dead pixels). You can open our red, green, blue, white, and gray test screens right now. See our guide on how to check for dead pixels for the full method.

2. Color gradients (find banding)

A smooth color gradient should fade seamlessly from one shade to the next. If you see visible steps or stripes instead of a smooth transition, that's color banding — a sign of low color depth or poor calibration. Gradients from black to white and through the primary colors are the standard test.

3. Grayscale and white balance

A grayscale ramp from black to white should be neutral gray at every step, with no color tint. If the dark grays look red, blue, or green, your white balance is off. A pure white screen should look white, not warm (yellowish) or cool (bluish).

4. Skin tones and reference photos

Finally, judge overall accuracy with content you know well — a familiar photo of a person (skin tones are very sensitive to color error), a landscape, or a calibrated reference image. If skin looks sunburned or pale and grass looks neon, the color is off.

How to Spot Color Banding

Color banding shows up as visible stripes or steps in what should be a smooth gradient — most obvious in skies, shadows, and dark gradients. It's usually caused by an 8-bit panel showing subtle shades, a limited color-depth setting, or aggressive compression. To reduce it: set your monitor and operating system to the highest color depth available (10-bit if the panel supports it), use a DisplayPort or HDMI connection that carries full color, and enable any "deep color" or 10-bit option in your graphics settings. Some banding is just the panel's limit and can't be removed.

How to Calibrate Your Monitor's Colors

If testing reveals inaccuracy, calibrate. From basic to advanced:

• Reset to factory settings first, so you start from a known baseline.
• Set brightness and contrast to comfortable levels (40–60% brightness is typical indoors).
• Choose a color temperature around 6500K (often labeled "warm" or "sRGB") for neutral, accurate whites.
• Use the operating system's calibration tool (Windows: Display Color Calibration; Mac: Displays → Color calibration) for a guided basic adjustment.
• Use a hardware color calibrator (a colorimeter such as a Spyder or Calibrite) for true accuracy — essential for photo and video work, overkill for casual use.

For most users, factory reset plus sensible brightness and a 6500K color temperature gets you 90% of the way there.

Color Accuracy: sRGB, Adobe RGB, and DCI-P3

Monitors are rated by the color gamuts they can reproduce:

• sRGB: the standard for the web and most content. Every monitor covers it; for general use, accurate sRGB is what matters most.
• Adobe RGB: a wider gamut used in professional photography for richer greens and cyans.
• DCI-P3: a wide gamut common in HDR and cinema content, with richer reds and greens.

A monitor that covers more of these gamuts can show more saturated, vivid colors — but only if your content and settings are set up to use them. For everyday use and web work, a well-calibrated sRGB mode looks the most natural.

Monitor Color Test vs. Dead Pixel Test

These overlap but aren't the same:

• A color test checks how accurately the screen reproduces color (banding, tint, gamut).
• A dead pixel test checks for individual broken pixels using solid colors.

Solid-color screens do double duty — they're part of a color test and the tool for finding dead pixels. See our dead pixel guide and stuck pixel fix if a solid color reveals a dot that won't change.

Frequently Asked Questions

Why do my monitor colors look washed out?

Usually a brightness or contrast mismatch, a wrong color temperature, or a limited color-gamut setting. Reset to factory, set a neutral 6500K color temperature, and make sure you're not in an oversaturated "vivid" mode. If it persists, the panel's gamut may simply be narrow.

Do I need a hardware color calibrator?

Only for color-critical work like photo or video editing, where accuracy matters. For gaming, browsing, and movies, the built-in OS calibration plus a sensible brightness and color temperature is plenty.

Which color test should I run first?

Start with solid colors to rule out dead or stuck pixels, then run gradients to check for banding, then grayscale for tint. Pixel defects are the most urgent to catch — especially within the return window.

The Bottom Line

A monitor color test uses solid colors, gradients, grayscale, and reference images to expose how accurately your screen reproduces color. Start with solid colors to find pixel defects, check gradients for banding, then calibrate with a factory reset, comfortable brightness, and a 6500K color temperature — adding a hardware calibrator only if you do color-critical work. Accurate color makes everything you watch and create look the way it should.