Provides a controlled visual HDR inspection workflow to evaluate highlight clipping, tone curve rolloff, and near-black separation. Peak luminance in nits requires physical laboratory equipment; this visual test evaluates relative tone reproduction in your browser.
Inspect whether subtle circular target reticles remain distinguishable inside near-peak highlights.
Browser CSS media queries (such as dynamic-range: high and color-gamut: p3) confirm that your operating system compositor is outputting an HDR signal to the browser. However, the browser cannot measure physical peak brightness in nits or physical contrast ratios. True optical luminance and peak HDR performance require dedicated colorimeter hardware.
Verify your browser and OS correctly detect HDR and Wide Color Gamut.
Inspect wide color gamut support and verify rich saturation rendering without clipping.
Tune your monitor's black levels to ensure dark details aren't crushed.
