Test Information
The Contrast test evaluates your display’s “Dynamic Range”—its ability to show distinct levels of brightness simultaneously. Proper contrast is essential for seeing detail in both dark shadows and bright highlights, providing depth and realism to images.
🎨 Color Channels (Gray, Red, Green, Blue, Cyan, Magenta, Yellow): Use the colored buttons in the control panel to switch between different color channels.
📏 Gamma Target Strips: Vertical blocks represent gamma values from 1.8 to 2.6.
⬅️➡️ Navigation: Click the background or use the Left/Right Arrow Keys to change color channels.
📌 Status Bar: The active channel name is displayed in the control panel for easy reference.
⬛ Black Crush: Look at the first 3 or 4 bands near the black side. If they look like a single solid black block, your monitor is “crushing” shadows, and you are losing detail in dark scenes.
⬜ Highlight Clipping: Look at the last 3 or 4 bands near the white side. If they blend together, your Contrast setting is too high, and you are “clipping” bright details.
⚖️ Neutrality: On the Gray channel, look for any unwanted colors. The bands should look like “pure” gray. If some look slightly green or blue, your monitor’s color balance is uneven.
Set your monitor to “Standard” or “sRGB” mode. Avoid “Dynamic Contrast” which often hides these bands by constantly changing the backlight. If you see clipping at the white end, try lowering your monitor’s physical Contrast setting until you can see the boundary between the last two bands.
Comprehensive online contrast ratio test, dynamic range checker, black crush diagnostic, and highlight clipping tool for HDR and SDR monitors.