Paint the colour which prints out 'blue' in the lighter of the two shades Charles, which I think is the Dark Slate Grey - can't remember without seeing them together!
From close study of the available photos, it looks like the yellow leading edge strips were not used. These were for ID purposes on single engine day fighters in Northern Europe, so makes sense that they wouldn't be used.
EDIT: The two colours are very close together in terms of tone and brightness. So, if you use the starboard side colour profile of the float plane, posted previously, this will give you guidance as to which is which. Basically, the colour which is a definite grey should go where the grey (showing blue on your print-out) would be, and the colour which has a greenish tinge should go where the green is (showing as Olive Drab on your print-out). From memory, the greenish tinge will be the Dark Slate Grey - but check by painting a piece of scrap, as a sample, and letting it dry.