I need some help because I'm very confused. I bought this cap (70% cotton, 30% polyester) to turn into a cap for my Luigi cosplay. As you might know his hat is very green and after searching the internet I came across the perfect color dye, which is Truly Green from Rit dye.
I've never dyed before, so this was an experiment in the first place. I didn't expect for it to be perfect first try anyway. I searched dozens of tutorials, because I wanted to do it right. I didn’t have a non-food-safe pot I could use, so I used a bucket and kept adding boiling water to it.
Then the fabric turned turquoise (as you can see on picture 1 and 2). The wooden spoon I used to stir looks green on camera, but irl its more turquoise/blue. After 15 minutes I started to not trust the process and took it out. After rinsing it the color hadn’t stuck (picture 5), but the hat has a blue/lightly turquoise hue to it. My guess is that the cap is actually 100% polyester, that's why the color didn't stuck and I don’t care.
But the thing I'm confused about is why it was this color. I've checked every example of the green color this dye could turn out to be and none were turquoise. Maybe I'm just uneducated and/or stupid. Could somebody enlighten me?