My favorite complementary color duo has to be orange and blue. It is such a cheerful combination.
In playing with my cards this weekend I have found a color that I must restock - MFT's Tangy Orange. That color seems to combine so well with a nice navy blue.
I feel I must explain the context of my card a little bit... I made this for a friend who told me the tales of her dog's love of chasing (and catching) rabbits. She tried to rescue one not too long ago, but... well... it wasn't such a happy ending for the bunny. So sad, except for the fun her dog had that is...
Some details about the stamps I used on my card - the dog is from MFT's You Make My Tail Wag and the bunny is from Lawn Fawn.