Touch up will vary greatly depending upon natural light, lighting, sheen, color, location of touch up and age.
Typically even using the exact paint out of the same can and it will still not blend properly. You may be happy with the results though. Make the touch up as small as possible, use the same application method that it was originally painted with such as brush, roller or spray. Worst case it will not touch up well and you have to repaint a wall here or a wall there.