I'm happy to refer to anyone as anything they want, but am never sure about the latest racial etiquette. There is a valid reason why "people of colour" became used and that's when I started using it instead of black. I am not aware when it became so yesterday.
Current racial etiquette is to refer to them as their skin colour or ethnic origin….
so Black, asian, carribean etc etc ……but not a “person of colour”.
Hope this helps