yes, the question is when
the picture is from before the turn of the century, possibly even earlier, judging by the chako
But You were asking for the colours
well, this looks like the reproduction of a coloured etching - You must imagine that in print the full range of colours was not available to use. From what is known, the colours are basically correct, but the details are not.
the red would be darker and fuller, madder red, and the blue too. However, due to the better quality of the officer uniform, these would keep the chroma longer and they be replaced more often, while the issue uniform would fade quicker.
this reality over time generated the custom that the officer blue got almost black, in order to generate the appearance from the start.
if I may ask back: isn't that similar with british uniforms, only with reversed colours?