Not as bright as I would have hoped

I've ordered through SM in the past and always love their quality, cut, paper, and printing. However this was the first time I ordered a mostly one color design and I was a bit disappointed. The design was not as vibrant as I would have hoped. It's still good, but not BRIGHT. Maybe this has to do with the matte finish material? Overall, I would order through SM again, but maybe alter my design or not order designs that are suppose to be heavily saturated.