Studio white, #FDFDFB, is two points off pure with the faintest warmth: what a well-lit white cyclorama actually measures when you have not blown it out.
Where I use studio white
- White products on white. Those two points keep the edge of a white mug or bottle readable without an outline.
- Catalogue pages. Sits quietly on a pure white web page without a visible box.
- Look-book frames. Feels like a room, not a cut-out.
- Soft screen backdrop. A touch less glare than full white.
Where I do not
It will not pass a strict pure-white check. For main images use #FFFFFF.
Why not just 255?
A background at 253 holds a trace of tone, so soft contact shadows can fade into it naturally. At 255 the shadow has a hard floor.