Little Sister cosplay progress

So far, I have found my fabric for my little sister cosplay. All I have to do is dye it to look darker. Maybe someone can help.


This is the fabric right here. It is a grey-white color with strips. I am needing to dye it to match the little sister's dress color. I am also using this pattern below. It's the Alice type dress but in Misses. If someone can help me out with the dye please let me know. I have choose a denim or navy blue dye. Thanks.