Correct air box cover color

Hey guys,

I recently purchased a 1973 CL350K5. When I pulled the air box cover (which is blue, but doesn't exactly match the blue on the tank), I was surprised that there are signs it was spray painted.

Its no surprise a previous owner would have painted replacements if the originals were cracked or lost.

The emblems look like replacements which is why i checked plus i thought the covers were not painted from the factory but the plastic was that color.

Does anyone know the correct air box color for a blue 1973 CL350K5?

Is blue right or were they originally white?

My guess is blue and these are replacements. I tried searching the net for old print ads in '73 but came up short for blue.

Thanks,
-Brian