Roofing Composition shingles:Does a darker color shingle create more interior heat?

I feel that being all shingles are the same color on the inside which is black...because they are asphalt based, then the temperature will not be affected by the color of the granules on top of the shingle. All shingles get hot when the sun hits them. After being on roofs of all colors my conclusion is that they all achieve similar temperatures in all conditions. Black shingles wont get that much hotter than white because they are still black on the inside. White shingles get damn hot too. As long as your roof is properly installed and ventillated you shouldnt have any heat issues if your shingle color is dark. I dont think manufacturers would put dark shingles on the market if they posed a heat threat.