Washing light laundry with dark may cause your clothes to discolor.
A bad enough bruise can discolor the skin.
The sun can damage the satin's texture and discolor the fabric.
Benzoyl peroxide may discolor hair or colored fabrics.
All hardwood floors will gradually discolor over time, as the stain and wood is susceptible to ultraviolet light and frequent use, but you can minimize these effects with some simple steps.
It may discolor darker or colored grout.