Removing colour run from multi coloured items?

[lentilpot]

So we had a washing accident with a brand new black t shirt and a sentimental baby gro, which has left the white bits of the green/white sleepsuit looking a bit faded and purple. Any ideas for sorting it out? Fixed the rest of the colour runs from the load with a Milton solution, which worked a treat, but worried about bleaching the green of the baby gro?

I know this is totally pfb of me, but at 39.5 weeks pregnant this is the level of obsessive nesting I'm now at!!

a colour run remover from the supermarket?

I have one of those in the cupboard but it says to be aware it might ruin the garment and only to use if the damage is severe!

Any other ideas?