Mark you can get these great things called colour catchers! they should help lift the blue, also you can get glo-white to pop in the whites wash that will make them look like new! another good old fashioned way is to soak them in water with a cup of milk in over night then wash them as normal (without the blue shirt) see how that helps :hug:

if you have not tryed to re wash it try colour run that will work , if you have washed it then try it anyway . dont worry we have all done this even me and i have been married for 21 years this year