Bleached Beige Jeans Turned Pink

I've had bad experience with white garments and dark colored detergents (in this case, it as dark ALL detergent and white jeans). Next time, make sure all the detergent is dissolved before adding the clothing.

I was trying to figure out for a minute why you put bleach on your jeans??? That was the culprit. Actually pink is part of the color of beige. Like said before, nothing you can do except dye them.

You added bleach to the water and then soaked your jeans in them and it sounds like the jeans were not colorfast and faded to a pinkish shade. Don't think there's any changing of the color unless you try to dye them.