Volvo 850 Combi leather color grey

Hello, I have already read a lot about the dyeing and care of Volvo leather. Unfortunately, I have not yet found the right answer, which is sufficient for my purposes: a Volvo 850 Combi leather trim is to be reworked. This has the typical grey, even the opinion that it is black. The equipment comes from another vehicle, and can thus no longer be tracked with the production data. On one component, a side panel, stands “gris”, which probably just means grey. My question : there is an exact number here, a color code that clearly assigns the color tone. I probably know the service of some providers who can emulate the color tone based on a pattern, but that is not enough for me. A simple assignment of the designation of “gris” to a color code is not possible for me from the documents I know. Similar colors, even as standard colors, are different from different leather service providers. (very probably….) – Number 46 – Stone Grey The difference is probably hardly visible in a complete processing. Nevertheless, I ask my question in the round whether anyone can describe this more precisely. Thank you K. Goessler / Berlin