So, from that, it seems the new Dulux Night Jewels palette is ‘replacing’ the old Ice Storm palette, but with differing LRVs. Ice Storm 2 is 00NN16/000 (NN means neutral, ie. no Hue at all) but Night Jewels 2 is 00NN13/000 and Night Jewels 3 is 00NN20/000. For example 12GY34/567 means 12 (from 0 to 99) in the Green to Lime (GY is green-yellow) section of the Hue colour circle; 34 Light Reflective Value (Dark to Light, 0 to 99) and 567 Chroma (0 to 999) which is saturation. Even if you go to a Dulux Decorator’s Centre, for example, they know how to operate the machines, but not what it all means and the detail the machines show isn’t particularly useful in working out whether a particular colour is true grey. I also tried B&Q Valspar, but they knew even less. Just commenting to thank you. All these years later there is still very little info on true grey and how to get some. My experience in the UK…