Here are two photos of the Boghall and Bathgate Pipe Band showing their lovely Ancient Hunting Fraser kilts. Note how the blue predominates; if asked to quickly identify the band I'd likely say "that band over there in the blue kilts".

Since Fraser has equal stripes of blue and green, it must be that the green stripes in their kilts is somewhat bluish and blends with the blue stripes at distance.

But with one of the swatches above the green is a more pure green, blending with the blue at distance to create mint green, so that the tartan at distance looks brown and mint.