https://www.woolies-trim.co.uk/categ...tured-products can help with the matching colouring.
My seats were torn on the outer part but fine on inner panel which still had the patina. To retain the patina that matched the rest of the car, I only wanted to do a necessary repair, not an artificial refurbishment (the car had never been restored, only well maintained).
Connolly was not an option given my location and at the time, word on the street saying they were no longer the same quality as 40 years ago.
I selected a more durable leather available locally, giving me colour-unmatched seats. I sent a snippet of the old leather to Woollies and they sent me a complete kit. The match was perfect and as long-lasting as the original.
Here is a photo of the before and after. Unfortunately, I do not have a photo of the seat after applying Woolies, but it was applied to both old and new, matching the rest of the car perfectly.