Pure white, #FFFFFF, RGB 255, 255, 255. This is the one the marketplaces mean when they say “pure white background”. I use it for every main image and as the base layer under every cut-out.
Where I use white
- Marketplace main images. Amazon’s main image rule asks for pure white; anything greyer risks suppression.
- Base layer for cut-outs. Drop the clipped product on a generated white and the background is exact by construction.
- Screen lightbox. Fullscreen on a tablet, it backlights glass, jewellery and translucent packaging.
- Monitor check. Dust, dead pixels and uneven backlight all show on full white.
Where I do not
For lifestyle and editorial frames, pure white can look clinical and makes white products vanish at the edges. I move to seamless white or studio white there.
In camera
To land the background at 255 without clipping the product, light the background about one to one and a half stops brighter than the subject. More than that and flare eats the edges.