There was a famous blog post by Ian Taylor called "Never use black", in which he explained that one should never use pure, complete RGB 0-0-0 black, and should instead put a little bit of color or light into it.
Does the same principle apply for white? Is is possible to use pure RGB 255-255-255 white in, say, a poster with dark background? Or should the white be similarly muted?
I don't know how "famous" the blog post is. The theory that black is unnatural is a standard which has existed well before August 2012 and dates back to the masters who rarely used black when painting.
To answer your question, I'd say no.
While it's true that in nature you never find pure black, the same is not true for white. Using a color other than true white can be exceptionally useful if you wish to create a mood to a piece, but pure white is a natural part of the spectrum unlike true black.
same principles should be used for white. the best example is the ranges of white used for the new Animaniacs cartoon. the character designs use a varieties of white and never a pure white.
