Windows HDR Calibration takes you through the steps to set the minimum and maximum brightness levels and color saturation levels and create a new color profile tailored for your display.

It is designed to help improve color consistency/accuracy and will let you customize how vibrant colors will appear for HDR and SDR when your machine's HDR is turned on.

Windows HDR Calibration can help in scenarios like blown-out whites on monitors lacking proper HDR certifications. Get your monitor to perform as it was intended providing a crisp picture.

Windows HDR Calibration includes three test patterns to provide a better HDR gaming experience.

The darkest visible details you can see

The brightest visible details

The maximum brightness for your display

Similar:

How to Enable HDR in Windows 10 & 11