Finally got my pants in from JD Sports and I can confirm that the "black" on their site is indeed 545343-032 (heather black). Their customer service was pretty clueless on the matter.
Does anyone know if the "black" on JDSports is the actual black or the dark grey?
I'm searching for the dark grey (545343-032) in a large. If anyone knows where I could find those thatd be great. Already have the light grey but would prefer to get the dark grey and return these light greys.