Video Calibration: 55% Gray Screen #8C8C8C | RGB 140, 140, 140 | 3 Hours 4K

This 3-hour 55% Gray screen video displays a solid #8C8C8C neutral gray field at 3840x2160 resolution (4K UHD). The unchanging image is designed for display calibration, testing, and analysis, providing a consistent reference for evaluating monitor performance. Photographers, video editors, and professionals seeking accurate color and brightness measurement can use this screen to set white balance, exposure levels, or assess their displays for dead pixels, backlight bleed, uniformity issues, or burn-in. To use effectively, play the video in fullscreen mode at 100% zoom, ensuring all ambient or adaptive brightness features are disabled beforehand. The 55% gray value serves as a standard reference point for metering systems and camera sensors, helping detect subtle color casts or contrast inaccuracies that might go unnoticed under normal viewing conditions. Extended runtime allows for thorough testing across different settings or environments. Observers can carefully inspect the screen for any inconsistencies in brightness distribution, color uniformity, or pixel defects that may indicate hardware limitations or calibration needs. The absence of dynamic content ensures focus remains solely on the display’s characteristics without visual distractions. For optimal results, view in a dimly lit room with minimal external light interference. COLOR VALUES HEX: #8C8C8C RGB: 140, 140, 140 CMY: 45%, 45%, 45% CMYK: 0%, 0%, 0%, 45% HSL: 0deg, 0%, 55% HSV: 0deg, 0%, 55% Decimal: 9211020 Name: 55% Gray FORMAT: 3840x2160 (4K UHD), 3 hours, BT.709, limited range. The color is encoded exactly, with no gradient, logo or watermark, so nothing on screen interferes with a measurement. The audio track is silent. HOW TO USE Play fullscreen at 100% zoom. Turn off adaptive brightness, night mode and any color filter first. For measurements, let the display warm up for a few minutes before reading it. More colors in this series:    • Solid Color Screens for Display Calibratio...   Subscribe if you want more calibration colors as they are posted. #calibration #displaytest #colorscreen