Weddingbee boards

Okay - long ago we decided our wedding colors were blue and orange.  I picked blue because it's been my favorite color for ages and my e-ring is a sapphire so I thought it was a good allover theme.  FI picked orange because while his favorite color is purple, he says he's tired of seeing it so much and orange is blue's complementary color.

So I knew that while I didn't have a definite shade picked out I didn't want a pastel color.  I was leaning towards something like cobalt for the blue but not definite.  Anyways, we had our save the dates printed up and they were a bright blue with orange accent. 

Now a few months ago FMIL bought her dress and it is royal blue.  At the time I thought it might be a big deal because I was considering wearing a colored dress for a while but ended up while a white dress.  I am having one BM and one FG.  Now I am wondering is it going to look completely weird if they match or are in a very similar color?  My mom doesn't have her dress yet but is planning on a green dress.

We were at AA this weekend looking for dresses for the MOH - she gets to pick the dress and I get to pick the color.  Anyways, the three colors I like are cobalt, mediterranean blue and indigo.  Although I think I'm liking inidigo more because it's a little further away from the royal blue than the other two.

What did your mother/MIL/bridal party wear?  Anyone have any weddings where they were very similar colors?  FI thinks it's going to look super weird if his mother is in a similar color because he thinks she'll look like she's in the bridal party.  I'm would never even raise the issue with her because I was just happy she took enough interest to get a dress (she was pretty upset initially about us spending money on a wedding and keeps stressing out about the potential costs involved).