Can this fabric be dyed?

Bought a dress online but I am worried that it maybe lighter than the actual color I need. The fabric description says: 63 %Polyester, 34 %: Rayon, 3 %: Spandex so was just wondering if I would be able to dye this type of fabric if I need to?

You'd have to use a dye specifically for synthetic fabric.
Like this-

Quoting Mommy and daddys angel:" Bought a dress online but I am worried that it maybe lighter than the actual color I need. The fabric ... [snip!] ... %Polyester, 34 %: Rayon, 3 %: Spandex so was just wondering if I would be able to dye this type of fabric if I need to?"

yeah, go to http://www.dharmatrading.com/ and see what they have. If you get stuck, just email them. Their customer service is great.