As accent colors, sure. But in an office setting as the primary colors you'll be looking at all day? Not so pretty.

They are almost opposites or complementary (the complement of yellow is actually violet, not purple, but purple is close enough), so just like blue and orange.

Complementary colors used in combination give the highest contrast.

Pretty fancy:

http://www.imdb.com/media/rm3892224512/tt0067992

Also see the Minnesota Vikings and the LSU Tigers colors.

As someone living in minnesota, I don't see how the vikings are a vote for purple and yellow. :D

this and LA Lakers

Pretty sure Datadog out-purples y'all http://datadog.com