Three, only because it seems easiest to read.
We're Changing Colors! - Page 3
Poll Results: Which of these four is your favorite color treatment?
34% (264)#1 Limey with Purple
19% (151)#2 Lemon with Purple
25% (200)#3 Browntown with Green
20% (156)#4 Dundun With Purple
Whichever will be most clear and readable. There is a reason most text is black on white, and it is not to bore the reader, but to make it easy to read. To access the info you want quickly and easily. Light green border with knock out white type may look lovely, but if no one can read it easily, they will leave the site. Large, short text knocked out of dark purple will be enough contrast to make it comfortable to read. And a lot of text needs to be in the darkest color possible for the design, and if you have to have a background color, make it as light as possible.
Start with the quick brown fox jumped over the lazy dog.
Subtle being the operative word.