Monitor Grayscale & Black Level Test
Test monitor contrast, color banding, and black level limits. Includes 256-level gradient chart and OLED black level challenge.
About Grayscale Test
Two Testing Modes Available
Evaluate your monitor's grayscale performance with our "Standard Mode" and "Challenge Mode".
1. Standard Chart
- Banding: A high-quality monitor should render smooth, silk-like transitions. Distinct vertical lines indicate low color depth or poor Gamma calibration.
- Contrast: You should distinguish between white (255) vs near-white (254), and black (0) vs near-black (1). Merging indicates "Black Crush" or overexposure.
2. Black Level Challenge
A gamified test for OLED and Mini-LED to test extreme shadow details.
- Spatial Dithering: In "Hell" levels, we simulate brightness below RGB(1,1,1) using algorithms. This showcases the true power of self-emissive pixels.
Best Environment
Perform the challenge in a pitch-black room to avoid ambient reflections.