If you searched for a monitor calibration test, this page gives you fullscreen reference patterns for adjusting an SDR display by eye. Use them when the whole picture looks too dark, washed out, tinted, or overly sharp. Record your starting settings and change one control at a time. The tool cannot measure color accuracy, create an ICC profile, or repair a fixed pixel, patch, line, or backlight problem. Check the Screen Color Test first if you need to inspect broad tint, banding, or uneven color before changing settings.
Prepare your monitor before calibration
A few checks make the comparison more useful
Record the current settings and know how to restore them.
Note the picture mode, brightness, contrast, gamma preset, color temperature, and any RGB controls you may change. Find the reset option first.
Use a neutral SDR picture mode.
Choose Standard, Custom, sRGB, or a similar neutral preset when available. Vivid, Dynamic, Cinema, and Game modes can add processing that makes judgment harder.
Keep HDR, Night Light, Night Shift, True Tone, and adaptive color settings consistent.
Turn off or record HDR, Night Light, Night Shift, True Tone, adaptive color, automatic brightness, Dynamic Contrast, Black Equalizer, Super Resolution, and similar enhancements for the comparison. You can turn a comfort or gaming feature back on later.
Use native resolution and normal browser zoom.
Keep the browser at 100% zoom where practical and avoid stretching the reference patterns. Leave system scaling at the setting you normally use.
Match the lighting and viewing position used during normal work.
Reduce glare, use the room lighting you normally work in, allow the display to warm up if the manufacturer recommends it, and judge it from your usual distance.
Adjust one monitor control at a time
Work through the patterns in order
The tool shows the reference image. You make the change on the monitor or in the operating system, then compare again.
Open the tool on the display you want to adjust.
Use the monitor’s native resolution and make the pattern as large as the tool allows. If you are adjusting a second display, move the browser window there before starting.
Start with the near-black and near-white patterns.
Set a comfortable overall brightness, then check whether nearby dark steps and near-white steps remain distinguishable. Do not chase a brighter or darker picture just because it looks more dramatic.
Check gamma, gray, color balance, and sharpness.
Use the gamma and neutral-gray patterns to spot a broad tonal or color cast. Use the sharpness pattern to remove artificial halos without making text soft.
Change only one control between comparisons.
Make a small adjustment, look again, and compare with the previous setting. If several controls move together, you will not know which change helped.
Verify the result with normal content.
Use familiar photos, text, video, and a dark scene. Keep the change only when the pattern and the content both look more natural.
Which monitor pattern should you use?
Use the symptom that matches what you are seeing. A pattern is a reference for a visual decision, not a measurement of the panel.
Pattern and control guide
Match what you see to the relevant pattern, make one small adjustment, and stop when both the pattern and normal content look better.
Swipe sideways to compare columns.Scroll table to view all columns.
| What you see | Pattern | What to adjust |
|---|---|---|
| Dark detail disappears | Near-black | Adjust brightness or backlight until nearby dark steps appear while black remains black. |
| Bright detail disappears | Near-white | Adjust contrast until bright steps separate without making normal whites dull. |
| Midtones look too dark or light | Gamma | Try the closest gamma preset, then confirm the result with normal content. |
| The image looks broadly warm, cool, green, or magenta | Neutral gray | Start with a neutral color-temperature or sRGB-style preset. |
| Text or lines have halos | Sharpness | Reduce sharpness until halos disappear without making text look soft. |
| Gradients show abrupt steps | Gradient | Check the source, profile, picture mode, and connection before changing more settings. |
Set brightness without losing shadow detail
Set brightness or backlight for the room where you normally use the display, then inspect the near-black pattern. Raise it only until nearby dark steps become visible. If black starts to look gray, stop. Settings named Black Level, HDMI Black Level, RGB Range, or Input Range may control signal range rather than ordinary brightness, so do not change them casually.
Adjust contrast without clipping bright detail
Start near the display’s default contrast value. Change it only when the near-white pattern shows that bright steps are merging. Stop when bright detail separates without making ordinary whites look dull. Higher contrast is not automatically better.
Check gamma and midtones
Gamma changes how midtones are distributed between black and white. A value around 2.2 is a common SDR reference, but this browser pattern is only a visual approximation. Viewing distance, scaling, browser rendering, operating-system color management, and the display’s available presets can all affect the match. A visual match does not verify an exact gamma value.
Check grayscale and color balance
Neutral gray can reveal an obvious overall color cast. Start with a neutral color-temperature or sRGB-style preset before adjusting individual RGB gains. Record the defaults first. Gray can show that the image looks warmer or cooler, but it cannot establish D65, white-point coordinates, or measured color accuracy.
Reduce excessive sharpness
Sharpness is usually edge enhancement, not extra panel resolution. At native resolution and normal browser zoom, reduce it until halos around text and fine lines disappear. Stop before text becomes soft.
Check gradients without misreading banding
A gradient can reveal abrupt tonal steps after a setting change, but banding can also come from the source, compression, browser rendering, color profiles, bit depth, GPU output, display processing, or panel limits. If normal content does not improve, stop changing settings; calibration cannot repair physical panel banding.
Fix washed-out blacks before recalibrating
If the entire image looks gray, faded, or unusually dark, do not keep changing brightness and gamma at random. Check the picture mode, input range, source output, HDR state, and color-management settings first. A full-image problem may be a signal-path mismatch rather than a brightness problem.
Check the signal path before recalibrating
The setting names vary by monitor, graphics hardware, and connection. Match the source and display rather than assuming one universal value.
Return to a consistent SDR setup
Temporarily turn off HDR and use a neutral picture mode so you are comparing one signal condition at a time.
Check the display input settings
Look for HDMI Black Level, RGB Range, Input Range, or a similar control. These may describe Full versus Limited signal range rather than ordinary brightness.
Check the source output range
If the computer or graphics driver exposes an RGB or output dynamic-range setting, make sure it agrees with the display. The correct option depends on the device and connection.
Run the near-black and near-white patterns again
Keep the change only if shadow and highlight detail improve in the patterns and in familiar content. If the picture still looks wrong across known-good content, stop changing settings and investigate the connection or display separately.
How to match two monitors by eye
You can reduce the visible difference between two displays without making them identical. Different panels have different brightness limits, color gamuts, and gamma behavior, so aim for a comfortable visual match rather than perfect sameness.
Use the same reference on both displays
Open the pattern on both screens or place the browser window across them, then compare from your usual viewing position.
Put both displays in neutral modes
Use Standard, Custom, sRGB, or the closest neutral preset on each display. Turn off dynamic contrast and color-changing comfort features while comparing.
Match white brightness first
Bring the brighter display down toward the darker one. A comfortable, similar white is more useful than pushing one display to its maximum brightness.
Compare neutral gray and familiar content
Use the gray pattern, photos, text, and a white document to reduce an obvious warm, cool, green, or magenta difference.
Stop when the difference is comfortable
A colorimeter is the appropriate next step when displays must match repeatably for photography, print, design, or client work.
Check the result with normal content
Test patterns make one comparison easier, but the display must also work for the content you actually view. Check photos, text, interfaces, shadows, and highlights before keeping the new settings.
A practical final check
Keep a setting only when the reference pattern and everyday content agree.
Swipe sideways to compare columns.Scroll table to view all columns.
| Check | What to look for | If it looks worse |
|---|---|---|
| Photos and faces | Skin tones and familiar colors look believable rather than obviously tinted or oversaturated | Restore the previous color-temperature or picture-mode setting |
| Text and interfaces | Text is clear without halos, crushed dark UI elements, or a washed-out background | Reduce sharpness or revisit brightness and contrast |
| Dark and bright scenes | Shadow detail remains visible and highlights do not flatten into one white area | Return to the relevant near-black or near-white pattern |
Browser calibration, OS calibration, or a colorimeter?
Choose the method based on the result you need. ScreenDetect provides a reversible visual baseline; operating-system tools handle supported settings and profile workflows; a colorimeter is appropriate when measured accuracy matters.
Choose the method that matches the result you need
Swipe sideways to compare columns.Scroll table to view all columns.
| Method | Useful for | Limit |
|---|---|---|
| ScreenDetect visual patterns | Everyday brightness, contrast, midtone, gray, and sharpness adjustments | By-eye guidance; no meter reading or ICC profile |
| Windows or macOS display tools | Operating-system display settings and supported profile/calibration workflows | They do not turn a browser pattern into a physical panel measurement |
| HDR or manufacturer workflow | HDR tone mapping, peak brightness, and supported HDR modes | HDR needs its own reference conditions; do not judge it with an SDR pattern alone |
| Colorimeter or spectrophotometer | Measured targets, repeatability, display matching, and ICC profiling | Requires compatible hardware and software |
Windows and macOS
Windows and macOS provide their own display settings and supported calibration or profile workflows. Use them when you need operating-system color management or a profile assignment; a browser pattern alone does not create one.
HDR displays
The patterns on this page are intended for an SDR visual baseline. HDR changes tone mapping, black handling, peak brightness, and display behavior. On supported Windows 11 systems, use the Windows HDR Calibration app; on other systems, follow the display manufacturer’s HDR process.
When a colorimeter is worth using
Use a colorimeter or spectrophotometer when photography, printing, design, client video, display matching, or measurable targets require repeatable results. Visual adjustment is a useful everyday baseline, not a substitute for measured profiling.
When monitor calibration will not fix the problem
If a symptom stays in one physical area while the rest of the image changes normally, global settings are unlikely to fix it. That includes a fixed line, patch, stain, dead or stuck pixel, pressure mark, backlight bleed, retained image, or burn-in. Calibration changes how the whole image is presented; it does not repair pixels, glass, backlighting, or panel electronics. Run the Screen Color Test for broad tint, color, or banding, run the Pixel Test for a fixed bright or dark point, run the Backlight Bleed Test for edge or corner glow, or run the Burn-In Test for a persistent screen shape.
Sources and manufacturer guidance
- Change display brightness and color in Windows · Microsoft SupportDocuments Windows brightness, Night light, color-profile management, and the built-in display-calibration workflow.
- Calibrate your HDR display using the Windows HDR Calibration app · Microsoft SupportDocuments the separate Windows 11 HDR workflow, its supported-display requirements, and HDR-specific patterns.
- Calibrate your Mac display · Apple SupportDocuments Display Calibrator Assistant, calibrated color-profile creation, and Apple’s home/office calibration caveat.
- Display settings for your Mac · Apple SupportDocuments Mac display settings, including display features that can change how color is viewed.
- Display calibration · International Color ConsortiumExplains that measured calibration uses an instrument and software to set targets and generate an ICC profile.
- EIZO Monitor Test · EIZOSupports preparation guidance on warm-up, glare, and viewing test patterns at their intended display size.
Monitor Calibration FAQ
Can a browser calibrate a monitor?
A browser can display reference patterns while you change available monitor or operating-system settings. That can give you a better visual baseline, but it cannot measure the panel, verify exact color accuracy, create an ICC profile, or change monitor hardware.
Which monitor settings should I change first?
Record the current values, start from a neutral SDR picture mode, then check shadow and highlight detail before changing gamma or RGB controls. Change one control at a time and compare normal content before keeping a setting.
Do I need a colorimeter?
Not for an everyday visual adjustment. Use a colorimeter or spectrophotometer when photography, printing, design, client video, matching displays, or measurable targets require a profile and documented accuracy.
Should I calibrate HDR with these patterns?
No. These patterns are intended for an SDR visual baseline. Use a supported HDR calibration workflow from Windows or the display manufacturer when you are adjusting HDR.
Can calibration fix a patch, line, dead pixel, or backlight bleed?
Usually not. A patch, line, stain, glow, or pixel that remains in one physical area points away from a global setting. Use a relevant screen test or damage guide rather than changing color controls repeatedly.