Do you accidentally have a red sock or - as in my case - a blue blouse with the light laundry thrown and the sock / blouse has dyed off? Thanks to "DanKlorix" no problem anymore.
Just put the discolored laundry in a bucket of water, add DanKlorix and let it work for 10 minutes. Previously white laundry is white again and even in coloreds works (despite warning from the manufacturer on the DanKlorix bottle).
Even a light pink baby body, which had become purple after washing, has regained its original color. And other things, which were partly colored and partly white, now look almost better than before.
Of course, this does not work for every garment, I also had a light pink tights, which was blue after washing and became white after treatment with DanKlorix and in a body which was white with green stripes, the stripes are now slightly lighter than before, but most of the clothes (after all, I messed up a whole machine load) look like before.
Then you should wash the laundry but at least 2 - 3 times to remove the smell of chlorine completely.