probekits

Color banding monitor

Visible steps in a smooth gradient can come from the image file, browser processing, output mode, or display.

Run the check

  1. Compare the CSS-generated gradient below with an image that shows banding.

  2. View both on another display at the same browser zoom.

  3. Change one color-depth or display mode only if your hardware documentation supports it.

Read the result

Bands only in a compressed image point to the source; bands in both need a wider output-path check.

Limits and next step

A CSS gradient is a visual reference, not a calibrated color-depth measurement.

Repeat the check after changing one setting or connection. Keep a record of what changed before deciding whether the device needs service.