I will be wearing a blush dress, I'm wondering what color suit my husband & our son's should wear? I'm thinking charcoal gray or maybe a bit lighter, or possibly even a navy suit. My planner suggested gray but I want other opinions.

Not sure if it matters, but in my bouquet there will be pink spray roses, white roses & pink gladiolus.
Also without giving the color of my dress away is there any way to tell him which color of tie to go for? I'll include the a picture of what the arbor colors will be.