Funny you say this, had someone I know who is in their 20's recently refer to themselves as "a colored person". They weren't black but of another ethic group. I cringed when they said it. I asked my 20 something daughter if that was actually okay to say these days. She said it was something being reclaimed, but you still can't say it as a white person, unless you are British. :-)
You can say it only if you can pronounce the silent "u" (coloured)
‘POC/colored people’ of the world UNITE to condemn/physically attack white people who do not agree to our calling them all RACISS.