What Is The Colour Of 1950s Tiger 100 And 110

Hi i have a recently purchased a 1960 Tiger 110 pre unit and want to change the colour to that light blue that was on lots of 1950s tiger 100s etc. Can anyone tell me what it is called and where i can get it?
I am doing lots of work on the bike and have found that the chronometric speedo does'nt work i have opened the case and it looks a sorry sight , i think there are some parts missing...has anyone got one for sale or where is the best place to get it restored? i live in Hertfordshire quite near Enfield ,i welcome any advice