my guess is that your malts actually have a darker color than what the software assumes.
Since these are both beers that were meant to be darker in color, I am guessing that you added some chocolate or something to the grain bill? There are many makers of chocolate malts, and they have a VERY wide range of colors.
I currently have some Thomas Fawcett chocolate that comes in at about 525 SRM. My brewing software had an assumption of 350 SRM for chocolate malt. That's a pretty major discrepancy and enough to make 4 SRM difference in a brown ale I attempted to make.
My final product tasted fine, but was black as hell and not a dark brown like I was shooting for.