nryan.design wrote However we'll be looking to update the guidelines in the near future and I'm wondering if this is a good time to address the issue of the murky colours. It absolutely is! I'd start with Pantone's Lab values for the coated versions of those colours, and convert to sRGB for the RGB values. For the CMYK values, I'd convert them to the most appropriate CMYK profile (based on your spelling of 'colour', I'd go for PSO Coated/FOGRA51, and PSO Uncoated/FOGRA52 for uncoated paper). You might then want to tweak them a little to get rid of 1% dots etc. But bear in mind that as Bobby said, CMYK is a moving target, and despite lingering misconceptions, those values will only ever have limited 'authority'.
... View more