Check a book or Online and see if what you described might be a Belted Kingfisher.
Size is about right, although the call is more often described as a rattle but your probably close enough. Given how lighting can play tricks, I believe that your overall description of color should be about right.
Particularly, if you were able to see that it had white on the breast and underneath. The blue under the neck are should extend onto the breast in a rough V-pattern.
