Output Hue and Luminance from a jit,pwindow ?

Hello everyone,

I am working on a project and I'm faced with a problem.

I want to get the Hue and Luminance of the average color of a jit.pwindow

I didn't have any trouble to calculate the average color of the jit.pwindow but I can't find a way to output its hue and luminance.
All I can do is output the argb values.

Is there a way to convert the argb values to hue and luminance ?

Or is there other ways to do this ?

I hope you will help me,

Thank you