What does a warm or yellow tint mean on my monitor?

A warm or yellow tint means your monitor's white point is set too low (below D65). This is often caused by a colour temperature setting of 5000K–5500K instead of the standard 6500K (D65) for general use. Go to your monitor's OSD and set Colour Temperature to 6500K or 'D65'.

Display Colour Test

Q: What is a display colour test?

A display colour test is a visual check of white point, saturation, tinting and clipping. It helps you spot obvious red, green and blue imbalance, over-boosted colours, or whites that look warm or cool. Browser tests reveal visible problems; professional calibration still requires a hardware colorimeter.

Q: Why do Samsung phones look over-saturated?

Samsung AMOLED displays default to 'Vivid' colour mode, which boosts saturation beyond the sRGB standard for a punchier look. This is technically inaccurate. To fix it, go to Settings > Display > Screen Mode and select 'Natural' for sRGB-accurate colours.

Q: Can I calibrate my monitor in a browser?

No. Browser tests can reveal whether your display has obvious colour problems — wrong white point, over-saturation, strong tinting — but they cannot produce a calibration profile. Accurate monitor calibration requires a hardware colorimeter (like the Datacolor Spyder or X-Rite Calibrite) to measure actual light output and create an ICC profile for your operating system.

This display colour test is a visual check for white point, saturation, tinting and clipping on your monitor, TV or phone. It now uses a dedicated full-screen colour suite with primaries, saturation sweeps, white-point comparison, natural reference patches and tint-detection ramps, so you can spot over-saturation, wrong hues and white-balance drift much more clearly than with a simple grey slide. It will not measure absolute colour accuracy, but it is very good at exposing visible problems quickly.

Before you start: Disable Night Mode, True Tone, Auto-Brightness and any "Vivid" or "Dynamic" colour profile. Let the screen warm up for 15 minutes. These settings all actively change colour and will confuse results.

Test 1 — Advanced Colour Scenes

The advanced colour scene test shows pure primaries and secondaries, saturation sweeps, white-point references, natural colour patches and tint-detection ramps. Colours should look clean and vibrant with no muddiness, and neutral whites/greys should stay neutral rather than drifting warm, cool, green or magenta.

Red

Green

Blue

Cyan

Magenta

Yellow

White

Black

These are the reference colours as your browser renders them — compare to what you see in the fullscreen test.

Gradient Banding Test

Test 2 — Gradient Banding

A gradient banding test shows how smoothly your display transitions from one shade to the next. In 256-step mode, each step represents one distinct value in 8-bit colour (0–255). A well-set display renders these as a smooth sweep with no visible bands or jumps. Banding — visible steps or lines in the gradient — indicates either 6-bit dithering instead of true 8-bit output, a badly set gamma, or display driver issues.

Test 3 — Contrast & Gamma

The contrast and gamma test shows near-black patches (2–25% white), near-white patches (75–100%), and a dual gamma ramp. A well-calibrated display should show each near-black step as distinct — not crushed to black. The linear ramp (top) and gamma 2.2 ramp (bottom) should look different from each other; if they look identical your display is applying a non-standard gamma curve.

What common colour problems look like

🟡 Warm/yellow tint on white

Colour temperature set below D65 (6500K). Fix: OSD → Colour Temp → 6500K.

🔵 Cool/blue tint on white

Colour temp set above D65. Common on monitors set to 9300K. Reduce to 6500K.

🟠 Over-saturated colours

Vivid/Dynamic colour mode active. On Samsung phones: Settings → Display → Screen Mode → Natural.

🩶 Washed-out / pale colours

Brightness too high, contrast too low, or sRGB mode clamping output. Try the gamma test — near-blacks may be crushed.

Need accurate calibration?

Browser tests reveal obvious colour problems but cannot produce an ICC calibration profile. For professional-grade accuracy — photography, video editing, or colour-critical work — you need a hardware colorimeter that measures actual light output from your panel.

Datacolor Spyder X Pro — Hardware Monitor Calibrator

Measures real light output and creates an ICC profile for your OS. Works with Windows and macOS. ~£80–£130 depending on model. The entry-level Spyder is usually sufficient for home use.

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Display Colour Test — FAQ

What is a display colour test?

It is a visual check of white point, saturation, tinting and clipping. Browser tests reveal obvious colour problems quickly, but hardware calibration is still needed for true ICC-profile accuracy.

Why do Samsung phones look over-saturated?

Samsung AMOLED defaults to "Vivid" mode which boosts saturation beyond sRGB. Go to Settings → Display → Screen Mode → Natural for more neutral colours.

Can I calibrate my monitor in a browser?

No — browsers can show you patterns to diagnose obvious problems but cannot measure light output or write ICC profiles. Accurate calibration needs a hardware colorimeter like the Datacolor Spyder or X-Rite Calibrite.

What does a warm yellow tint mean on my monitor?

Your colour temperature is set below D65 (6500K). Go to your monitor OSD → Colour Temperature → set to 6500K or D65. On Windows you can also use Display Colour Calibration (dccw.exe).

Does this test work on OLED screens?

Yes. OLED screens often look very strong at default settings, but "Vivid" modes and viewing-angle shifts can affect what you see. Evaluate straight-on and with ambient lighting controlled.