I think when you look at an SRM chart on a two dimensional computer screen, it is a bit misleading. The colors represented on the 2D SRM chart are often much different than what you see when you look at a liquid beer with light shining through it, which is what most brewers would think of as the "color" of a beer. When I look at the SRM chart, 30 looks like the same color black as 75, but I know that if you hold a beer of SRM 35 up to the sun, it still has some tinges of red/brown, whereas you do the same with a 75 and it's just black. And SRM does take into account a certain constant amount of light, so it is the color with some amount of light shining through it. There's no light shining through the SRM chart, so it is almost a false representation by definition!
But yeah, either way a 75 SRM doesn't have any brown character to it. It is the blackest of the black, so Sam Adams has a discrenpency there.
Primary #1 - Midnight Ryeder (Midnight Wheat and Rye)
Primary #2 - Florida Weiss
Primary #3 - Kane-DOH APA (Honey Citra APA)
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Raspberry Florida Weiss
Keg #2 - Cinnamon Raisin Cider
Keg #3 - NONE!
Bottled - NONE!