I've got trouble thinking this is possible.

Of course there ARE other colors out there, outside the visible spectrum, but I can't imagine what it would be. I just don't think it's relatable to the concept of perception. I can imagine what it's like not having a body, despite it being physically possible. I've even dreamt about having a whole extra limb and was able to manipulate it and it was a weird experience, but I can replicate it in my mind if I think about it.

But I can't even begin to imagine a new color. Idk, I just believe dreams are largely based on expectation and imagination and I can't really do either.

Maybe I'm mentally blocking it for myself, but just expressing my thoughts on the subject haha.