One way of finding out is to check the owners manual for the light bulb number of the indicator bulb you wish to change the colour of.Then you can either call up the parts stores or dealership or bulb manufacture and find out if that type of bulb comes in any other shades or colours.
Hope that helps and best of luck.By the way one way of getting bulbs like that is to go to a do it yourself auto wreckers and see what the different vehicles like yours etc have in them.
Merry Xmas