Quote Originally Posted by perkeleellinen View Post
I can get the skin tones looking nice and the surrounding grass looking accurate easily enough, but the dress has a very (very) slight blue cast in the shadows. If I filter for this the groom's face goes green or the grass looks parched.

I'll go with C.

It is very possible it's the dress itself.

Many fabrics and even laundry soaps are infused with brighteners. These brighteners make fabrics look "whiter" to our eyes instead of looking "yellow and old", it is my understanding that these brighteners lean toward the blue/UV end of the spectrum and that can skew the photographic color balance of the fabric in relation to the rest of the picture.