Something wrong with my colour range selection

[Mark_PH]

I know how to use the ' Colour Range' to select the colour I want.

However, I have no idea why it doesn't work now.

I cannot select any colours even that colour is solid.

It is the example that I selected the green area below, it showed nothing if I selected the white circular area (all black in the that selection window).

[Jeff Arola]

Try setting the Fuzziness to around 40 and unchecking Localized Color Clusters.

https://helpx.adobe.com/photoshop/using/selecting-color-range-image.html