The infection on my arm just healed so i got my two live clean birds?

my cedar wood, scarlet yarn, and hyssop. i dipped a live bird into water with the cedar wood, yarn and hyssop. Then i sprinkled myself seven times, i was pronounced clean and i released the bird into an open field of course. I know this works because it's from the bible, and the bible is 100% accurate as it's the word of God. My question is; what would happen if i used blue yarn?