These are awesome quilts, by the way. The brick is a brick-red-- a rich, deep red. The navy is the color of a Navy pea-coat if that helps-- a true navy color. Both are rich and deep hues. I bought the light blue, the navy and the brick red-- two as gifts. The folks loved them, and the deal on these cannot be beat at STP.
Sorry, I did not purchase those colors, but the sage green I purchased looked true to the color in the posting. I would say it is a 'medium' sage green. Not pastel, and not deep in hue either.