Online HDR & Wide Color Gamut Checker

Check if your monitor supports High Dynamic Range (HDR) and Wide Color Gamuts like DCI-P3 and Rec. 2020 directly in your browser.

Standard sRGB Red

Display-P3 Wide Red (Vibrant)

On a standard sRGB monitor both reds look identical. On a wide-gamut (Display-P3) screen the right one is visibly more saturated.

Gradient smoothness (clear vertical bands = 8-bit panel or heavy compression)

Near-black detail (you should tell all 16 squares apart; merged dark squares mean crushed blacks)

Technical Metrics & Telemetry

HDR Dynamic Range

Checking...

Color Gamut Support

Checking...

Hardware Color Depth

DCI-P3 Color Space

Checking...

How to Use This Tool

STEP 1

Inspect Color Swatches

Look at the two red boxes above. On a DCI-P3 wide gamut display, the right box appears noticeably more intense and saturated.

STEP 2

Review Diagnostic Tags

Check the dynamic range reading to confirm whether HDR mode is currently active.

STEP 3

Verify Windows HDR Setting

If your monitor supports HDR but shows SDR, enable HDR in Windows Settings > System > Display.

Frequently Asked Questions

What is the difference between HDR and SDR?

HDR (High Dynamic Range) allows displays to produce significantly brighter highlights, deeper true blacks, and expanded color volume compared to traditional SDR (Standard Dynamic Range).

What is the DCI-P3 color gamut?

DCI-P3 is the cinema industry standard wide color gamut that covers 25% more color space than standard sRGB, particularly in greens and reds.

Why does HDR make SDR content look washed out on Windows?

Windows uses an SDR content brightness slider when HDR is turned on. Adjust the SDR content brightness slider in Windows Display Settings to match your room lighting.

Can any browser display HDR videos?

Modern browsers like Google Chrome, Microsoft Edge, and Safari natively support HDR video decoding via AV1/VP9/HEVC.