Pycker is a python tkinter based color picker tool. Tkinter has no mouse tracking system outside a widget. So in this software we use an invisible toplevel window to get the mouse coordination (x,y).

I needed a converter for some RFID/NFC work, and all the converters I tried kinda sucked. I think this one sucks less, so hopefully you do too. With any luck I'll improve it as I continue using it ...