Actually, it is much lighter than the LMB on my Z06. It is much closer to the Nassau Blue that they had on the C5s in '99 - '00 time frame. I will say it is drawing a ton of comments wherever we take it.
Since we had an '01 Navy Blue Metallic vert, I did not think the LMB was very dark, but in comparison to the new Laguna Blue, it is.