Getting Bleach out of Colored Clothes

Bleach the entire jeans and wash well, then use Rit denim fabric dye to redye then.

I use a colored sharpie pen that is as close to the color of the fabric as possible. In many cases it's still noticable but not as noticable as the bleach mark :-) When I have a white fabric that gets a dark spot I use liquid white-out for paper.

Get you some old fashioned laundry bluing. it works. My mother used to used a blue crayon to much covered the area with the crayon and then ironed with a warm iron. Cover it with a thin cloth first to keep extra off your iron.

This may sound silly but try a felt marker pen and colour the patch back in. The bleach has lifted the dye so the only way to get the colour back is put some more colour on!