What size is a United States Passport (DS-11) photo?
51 × 51 millimetres (600 × 600 min in pixels where digital submission applies). Head height should be 70–80% of height of the frame.
What background does the United States Passport (DS-11) photo need?
White or off-white. Keep the background evenly lit — shadows are a top rejection cause. No glasses; plain attire; no head covering unless religious (add signed statement).