View pattern in dimly lit room at normal distance.

What is contrast ratio?

Difference between brightest white and darkest black.

Why different from angles?

Panel technology determines viewing angle performance.

Dimly lit room similar to work environment.

Kan din skærm vise alle kontrastniveauer?

Test din skærms kontrastforhold med gråtonemønstre. 256 niveauer. Browserbaseret test, ingen installation.

IPS: 1000:1, VA: 3000:1, OLED: >1,000,000:1.

Contrast Level

1% gray vs black

Integrer

Integrer dette værktøj

<iframe src="https://diagno.patrache.studio/da/display/contrast-ratio/?embed=1" width="100%" height="620"
  style="border:1px solid #e5e7eb;border-radius:12px" loading="lazy"
  title="Kan din skærm vise alle kontrastniveauer? — Patrache Studio Diagno"></iframe>
<p><a href="https://diagno.patrache.studio/da/display/contrast-ratio/">Kan din skærm vise alle kontrastniveauer?</a> by
   <a href="https://patrache.studio/">Patrache Studio</a></p>

?

Resultat	Interval	Betydning
✓	Alle gråtonetrin 0-255 er visuelt skelbare	OK
⚠	Trin under 10 eller over 245 er svære at skelne	Minor
✗	Flere tilstødende trin ser identiske ud	Issues

Issues

Dark steps (0-20) all black

Brightness too low. Check full-range RGB.

Bright steps (235-255) all white

Contrast too high. Reduce below 80%.

Color tint in grayscale

White balance off. Adjust in OSD.

Different on laptop vs external

Different panel technologies have different contrast.

Kan din skærm vise alle kontrastniveauer?

?

Issues

Dark steps (0-20) all black

Bright steps (235-255) all white

Color tint in grayscale

Different on laptop vs external

Ofte stillede spørgsmål

Tillad annoncer på denne hjemmeside

Kan din skærm vise alle kontrastniveauer?

?

Issues

Dark steps (0-20) all black

Bright steps (235-255) all white

Color tint in grayscale

Different on laptop vs external

Relaterede værktøjer

Farvenøjagtighedstest

HDR-test

Gradient Banding-test

Ofte stillede spørgsmål