The men in my family think that any pattern that is any sort of "checkerboard" alternating colors is very feminine and if given a traditional quilt would put a comforter on top of it! LOL! I would suggest you use your colors in a striped pattern. Lght brown stripes then darker brown stripes on the inside of the quilt top to bottom. Put the blue stripes on the sides of the quilt. No pattern, just an arrangement of colored stripes.
Very masculine.