Weathered *what*? That's the important part.

Weathered colors are certainly not my specialty, but I'm going to go out on a limb here and say that what you have there is a fashion tartan in mostly different shades of brown. Otherwise, I'd be looking for a tartan with blue, green, probably some black, a little white and/or azure, and *lots* of yellow, or maybe light green. No red whatsoever, unless that brown line close to the white line of the same width is supposed to be red.