with that color i think your really only going to be able to make them darker not sure there are alot of people that are good at dying on here so just search it, you will find some good help
if you even try to dye blue boots its going to fuck up the color unless your going with a similar shade of blue.... you CANNOT dye blue boots any other color that another shade of blue..... successfully that is. I encourage you to try though, I am interested in what will happen
talk to laxers at your school, they are always dying their heads. good luck dying blue boots, its good to have white as a base color. i have seen people paint them successfully and others where it peals off, good luck.