"The box was small and oblong and apparently made of silver and porcelain. It was a beautiful shade of blue, but then again not exactly blue, it was more like lilac. But then again, not exactly lilac either, since it had a tinge of grey in it. To be more precise, it was the colour of heartache. But fortunately neither Miss Greysteel nor Aunt Greysteel had ever been much troubled by heartache and so they did not recognize it."
--Jonathan Strange and Mr. Norrell