White is the cleanest, crispest color that can often become sterile or boring. Yellow, on the other hand, is instantaneously cheery and has popped up everywhere as a great accent pairing. From Pottery Barn to CB2, yellow and white are living in blissful harmony, perfectly countering each other’s bad habits (white can be too plain an yellow too vibrant).
Here are some great examples of yellow & white from Domino:
You can also pair yellow and white with black for some real drama: