Color & Tonal Accuracy
Contrast, Gamma & Sharpness Calibration
Verify that dark shadows and bright highlights are accurately reproduced without black crush, washed-out gamma, or blurry text scaling.
Display Active
Stepped Tonal Range Chart
Can you differentiate each step between 0% and 5%? If the first 3 boxes look completely identical and black, your monitor suffers from black crush.
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💡Softbox Light
Fullscreen (F)
Keyboard Controls in Fullscreen: Space Next · F FullscreenFullscreen (F)
Canvas:#FFFFFF
Mode:🎨 Solid Color
Gamma 2.2 Standard
Gamma controls the non-linear relationship between numerical pixel values and actual emitted light luminance. The global web and sRGB standard is Gamma 2.2.
1px Checkerboard Sharpness
Alternating 1-pixel black and white squares check if Windows ClearType, GPU scaling, or TV sharpness enhancements are creating noisy ringing artifacts.