New tat fading significantly

I went 6 days ago and got my first tattoo ever. I know the healing process, scabbing, peeling, etc. This is not what concerns me. I got a script text that is filled in with color, one is pink and the other is blue. The pink is peeling just fine, coming out bright and pretty. The blue however, is taking much longer to peel and the parts that are peeling are a very dull grey as if nothing is there at all. Is this normal for blue or what? It is concerning me. I have done all the necessary aftercare, and the place I went was VERY reputable. I have not been picking at the scabs or peeling anything off. Just wondering if this blue issue is normal, or if I need to go for a touch up when it is completely healed. Thanks :)