From the time they were created and used in 1993 until November 2001, [Humanitarian Daily Rations] were packaged with a bright yellow outer plastic covering. This choice of color proved to be problematic in areas of the world where cluster bombs were being used, as the bombs were the exact same shade of yellow. Recipients of the rations sometimes confused the ration package for undetonated cluster bombs, often spotting the bright color from a distance and making an incorrect assumption.

-Wikipedia, Humanitarian Daily Ration

They're Baker-Miller pink now (the rations, not the cluster bombs (I hope))