In search of true black shingle

I am actively searching for a true black shingle with no gray/charcoal hues. Can anyone give me any suggestions on a brand who may carry a shingle that will give off the appearance of a dark black. I will be paring it with black metal on porch and gables. Thanks a ton!!! Hoping someone can help me with this dilemma.

Try to visit gaf . com or owenscorning websites. They have sample in their website.