The couple, who are expecting their first child, a boy, at the end of September, married in secret in June.
Williams and Matthews today both shared the first official photo of the event, which graces the cover of this week's 'Hello!' magazine.
The couple tied the knot in an 'intimate' ceremony attended by close family and friends on the Matthews family's Glen Affric estate in Scotland, with Spencer's brother James (who is married to Pippa Middleton - making Vogue her new sister-in-law) acting as Best Man. Other guests included James Middleton (brother of Kate and Pippa), who reportedly did a reading at the ceremony.
Vogue can be seen wearing the off-white, silk, V-neck wedding dress that was designed by Paul Costello, details of which were revealed by 'Hello!' magazine, while Spencer is in a bespoke midnight blue three-piece morning suit made by tailor Tony Lutwyche.
"It has gone down by many as the best wedding they’ve ever been to," Spencer told 'Hello!'.
"At the time it was so wonderful but almost dreamlike. It took a little while to sink in, but I certainly feel married, settled, and happy.
"Everything has fallen into place. As we’ve said before we are best friends, we love being together, so it does feel just perfect. We’re delighted."
Vogue's thoughts on the wedding haven't yet been revealed but she captioned her cover shot on Instagram as "The best day of my life."
You can read the full interview in this week's edition of magazine.