Sure -- make tiny, little solids in the colors of your choice and position them carefully to build a mosaic. It should only take a few dozen different-colored solids to reconstruct the floor of your typical Roman Villa floor from a few thousand years back.
Or rather than go to all that bother, you might want to expand your description of what you're actually trying to accomplish.
And what exactly? Your post makes no sense whatsoever without properly explaining what you actually want to do.
oookay....Can After Effects create a video mosaic of photos and not alter the color of them to make them match?
That's really not what I thought you were saying at all.
And the answer is no, but there are ways to create it and then animate it in AE. http://www.provideocoalition.com/ryoung/story/animate_a_photo_mosaic_in_after_effects/