I've admired that tartan for a long time. Yes, the light blue and brown go well together. But then again, that's what I love about the 'weathered' or 'reproduction' colour schemes for many tartans. I've actually considered getting some of this material, not for a kilt, but for recovering upholstery items.

It's a little difficult to tell from the photo, but that looks like it's not a twill weave? Seems like an odd choice.