Space or dark matter in the universe actually looks like this (at the plank length).

Except of course at this level there isn't anything we can actually perceive as color.
Color is a frequency traveling along one or more of the strings.
All we are able to see are the vibrations in a direction toward us... not the string or particle itself. (and the particles would all be connected and so thin/fine you couldn't see them anyway, plus... you don't actually see anything)