That was probably me. You can define colors objectively, it's not hard.
You can decide for some definition. But that's not the core of the issue. The core of the issue is that I can write decent Anki cards given my context-based truth which I couldn't write otherwise if I wouldn't think the context based frame.
However what you see on your computer monitor may (and does) differ considerably from the reference standard for a given color.
As I said above deciding for a reference standard isn't a trivial decision. The W3C standard is for example pretty stupid when it defines distance between colors. I also can't easily find a defined reference standard for what #228B22 (forestgreen) is. Could you point me to a standard document that defines "the reference standard"?
The core of the issue is that I can write decent Anki cards given my context-based truth which I couldn't write otherwise if I wouldn't think the context based frame.
The core issue is whether your argument amounts to context based truth, or context based meaning.
As per a recent comment this thread is meant to voice contrarian opinions, that is anything this community tends not to agree with. Thus I ask you to post your contrarian views and upvote anything you do not agree with based on personal beliefs. Spam and trolling still needs to be downvoted.