> Trademark infringement and copyright infringement are different things.
Yes, I'm aware of that, and have edited original comment emphasise it. I had vaguely thought there was some provision in the DMCA for remedies for other types of IP infringement as well as copyright, but haven't really looked into it that much. Then again, given how much easier it is to (potentially) infringe some trademarks, the severity of the remedy (immediate takedown, with perhaps later return) does seem like overkill.
I wasn't arguing that it was easy, merely possible. The examples all do seem to be large companies with significant legal budgets and generally strong or exclusive brands though, which does indicate it being quite rare.
Plus, it is actually fairly difficult to trademark a color.