Decorating help??

Okay so I'm moving to my apartment in a couple of months and I am trying to figure out how I"m going to decorate everything.. I've got my two bathrooms and my bedroom, but I need a little advice from people on my living room... I have white/beige-ish suede couches, and what I was going to do was paint the walls an orange-peach color and then get throw pillows with white, peach, and brown to match my furniture and curtains... but then I have this papisan chair that has a mint greenish cushion... if I were to keep that color and avoid having to buy another cushion, what could I do to incorporate that color into the scheme? Should I maybe add another color to balance the peach and mint green? And if so what color? Or should I just throw out that green cushion and get a new one? Because I know it's going to be really hard to get those two colors to work together.. Any advice would be greatly appreciated!! Thanks in advance!! :)