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.

Testa din bildskärms kontrastförhållande med gråskalemönster. 256 nivåer. Webbläsarbaserat test, ingen installation.

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

Contrast Level

1% gray vs black

Result	Range	Meaning
✓	Alla gråskalesteg 0-255 är visuellt urskiljbara	OK
⚠	Steg under 10 eller över 245 är svåra att urskilja	Minor
✗	Flera intilliggande steg ser identiska ut	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.