If anything is possible, is it possible for anything to be impossible?What color is a mirror?

If “anything is possible”, then the idea that “something-is-impossible” is impossible. Because if anything is possible, then nothing is impossible

As a perfect mirror reflects back all the colours comprising white light, it's also white. That said, real mirrors aren't perfect, and their surface atoms give any reflection a very slight green tinge

I looked em up :3