Name: Annie
Message: Hi, I have a formal dress (moonlight fabric) made of 77% nylon, 15% metallic and 7% spandex. It's a baby pink color and I want to dye it jet black. It's dry clean only. Can you tell me which brand of color dye I can use for best results?

If you can't wash it, you can't dye it. Period.

It is true that many garments are marked "dry clean only" when they are perfectly safe to hand-wash or even wash in a washing machine, using cold water on delicate cycle, possible in a large net lingerie bag to reduce wear and twisting. Unlined rayon garments are the most common examples. If you wish to dye a garment marked "dry clean only" and are willing to take the risk, pre-wash the item. You'll have to throw it away if it does not survive! If it does survive, choose the right type of dye for the fiber, and dye it. In this case, you would choose acid dye, since the dyeable fiber in your dress is nylon.

However, it seems unlikely that your 15% metal dress is the sort to do well when washed. You are very likely to end up without a wearable dress. Sorry.