Another contributing factor to how effective the use (of the sometimes slandered) pink, is to be aware of all the many hues. The intensity and saturation of a cool, soft, blush pink are entirely different to that of a bold, bright cerise. This careful decision making is essential when deciding on the complimentary greys.
Consider may be the size of the room- does it need a whole statement wall and will a darker hue decrease the aspect of space? Will the colours work with the furniture and accessories you have already? Do you want a soft traditional look or perhaps a more contemporary feel? All of this is great fun to work out and before you know it you will have the little girl's bedroom of your dreams!
I have found myself absolutely loving the muted tones of pink. Almost grey/pinks. Apricot, almond and coral shades are also an alternative to the popular “barbie” pink. These more grown-up versions of the colour can be found in some beautiful soft furnishings and bedding available at the moment. Teamed with perhaps some silver grey or taupe statement furniture (or a painted brick wall if you have the chance!) this will be a child's room to be proud of.