What background does a passport photo need?
Almost every guide gives the same answer, white, and for a lot of countries that is correct. It is also the single most common reason applications come back from the ones where it is not.
The countries that want white
For these, a plain white or near-white wall is what the authority asks for, and the practical problem is evenness rather than colour.
- United States: white or off-white
- Canada: plain white or light-coloured
- China visa: pure white, with no gradient at the edges
- United Kingdom: plain light-coloured, so white qualifies but is not required
The countries that do not
This is the part worth knowing before you photograph yourself against a white wall. South Korea asks for light grey. Australia asks for a neutral or light grey background that contrasts with your face, which is a different test entirely: if your complexion is pale, a white wall can fail it precisely because there is not enough contrast. Neither of these is a preference you can ignore, and neither is visible as a problem when you look at the photo.
Even matters more than exact
Where a country does allow a range, the thing that gets photos refused is not the shade but the shadow. Standing close to a wall with a light or a flash in front of you throws a dark edge behind one shoulder, and that reads as a patterned background rather than a plain one. A metre of clearance between you and the wall removes it, and daylight from a window removes it better than any lamp.
What a background remover does and does not fix
Replacing the background gives you an exactly even field in the required colour, which solves the shadow problem completely. It does not solve contrast: if the specification asks for a background that contrasts with your face, the colour still has to be chosen against your complexion rather than defaulted to white. Picking the document rather than the colour is what makes that decision correctly.
Questions
Does a passport photo have to have a white background?
Not always. The US, Canada and Chinese visa applications want white or near-white, the UK asks for plain light-coloured, and South Korea and Australia specifically ask for light grey or neutral rather than pure white.
Why was my photo rejected for the background when it looks white?
Usually a shadow rather than the colour. A light in front of you casts one behind your shoulder, and an authority reads an uneven field as a patterned background. Stand about a metre clear of the wall.
Can I use a grey wall for a US passport photo?
It is a risk. The State Department asks for white or off-white, so a mid-grey wall is outside that. Light grey may pass, but you are relying on someone's judgement rather than meeting the spec.
Is a background replaced by software acceptable?
Yes, as long as the result is a plain even field in the required colour and the rest of the image is unaltered. What authorities object to is retouching the face, not producing a compliant background.