The Little Greene Paint Company have taken their twelve best-selling shades from their 'Colours of England' range and added lighter and darker hues, so that for each original colour their are now four to choose from.
Nothing especially new with that (although surprisingly few of the 'posh' paint companies have lighter and darker versions of their colours. Grrrrr.). What is original is the way the chart can be concertinaed to align the colours away from the background of the card, allowing the user to compare the colours like for like (or, rather, shade for shade!), instead of being skewed against the glaring white which usually surrounds colour chips.
I love the colours they have chosen. Soft, chalky shades of grey, taupe and cream. Classic Modern Country choices.