EIFS manufacturers typically have color chart that lists a couple dozen of their standard/common colors ranging from earthy beiges to vibrant blues. Most manufacturers will have the ability to custom match an existing color, whether it be a paint sample from the hardware store or the blue of your favorite car. This makes the choices for coloring your home literally limitless.
When matching a specific color, the best practice is to get an 8″x8″ (or similar) size sample made up from the manufacturer to ensure that it is what you are looking for. The texture of EIFS finish coats will slightly change the perceived color because of the miniscule shadows cast by the finish coat aggregates.