It's your car so do what makes you happy....I personally like the original colors on the early model Mustangs so save the loud/bright colors for the late models.
thats almost the same color as mine is painted. mines a tad bit darker and has a very fine metallic flake in it, i love it. just wish it didnt chip so easy. looks good.
i love the dark blue, my 65 FB was caspian blue, almost, if not, that color of yours now, my 67 coupe is eventually getting caspian blue with ghost flames