Is paint toxic to pets, specifically dogs?

While getting my house painted, my dog got into the paint. She got it all over her paws and legs. Is paint toxic for dogs if they ingest it? I had put her outside so she wouldn't get in the way of the painter. She started scratching at the back door and the painter let her in (just in case anyone wonders how I could be so shockingly stupid; it wasn't me, it was the painter).