Page 49 of the Parts Manual has the colours unless "Shark Grey" was a specialized colour which in that case you could contact MMC.

https://www.mtwc.co.uk/wp-content/uploads/2018/04/M3W-Parts-Book-V5.2.compressed.pdf


Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice) tis no more
2013 M3W (Olga)