We can provide colour charts, advice and can mix pigments according to your requirements.
As I have many pigments it is appropriate to contact and show a example of the colour your looking for and i can mix a range for you to choose from.
My color charts are usually altered from Auro or other brands colours.
Here is the Auro 321 matt wall emulsion colours to choose from. http://www.auro.co.uk/auro-paint/auro-interior-wall-paint?page=shop.browse&category_id=25