I join the approach of meaningful use of color. I think, the idea of capturing attention is correct in this regard. But also, some people use it just because other creators do.

I've recently been reading about one contemporary painting. At the core of the work it was a use of non-complementary colors (green and red). It was described as something interesting, but, to be honest, it looked more like a trick.

To me, color refers to the form. Thus, there is a choice to pay attention to the gist, essence.