The model soldier figure people argue over this..the right colour for a figure is what it looks best in and not neccessarily the technically right colour, if you see what I mean.
On D-day, there will be figures manning assorted landing craft of all hues so i wouldnt worry too much !!
The figures on my boats will be the colour of plastic they were moulded in, as they are toys and that willl be that.
Ashley