I just gave birth 3 days ago n im breastfeeding...is it ok for me to go ahead n color my hair. is it safe?

Yes: Safe to color hair but expect hair loss as it is normal post delivery.

Yes if natural dye: There are natural dyes nowadays. If artificial please wait. Any substance that you are expose or consume can be potentially pass to your baby.

I would not: First of all your just went through childbirth, your body needs few weeks to recover. Since you are breastfeeding , your baby is only 3 days old, you do not want your baby to expose to any chemical from hair coloring that would affect the resp.Including sinus and lung.