location of bg-color: #eef3da in Pastel Theme..

HI, I want to use the Theme "pastel" but I want to change the colour for the table surrounding the "blog content" with the paramaters "eb.eb-pastel" and " background-color: #eef3da;" but I can't locate where the code for colour "#eef3da" is located, in any file, can you help me with that :-)