35 × 45 millimetres (413 × 531 min in pixels where digital submission applies). Head height should be Head 34mm ±2 (top of head to chin) of the frame.
What background does the Japan Passport (パスポート) photo need?
White or light blue per consulate. Keep the background evenly lit — shadows are a top rejection cause. No glasses; ears visible; mouth closed; no shadow on background.