VISIONS OF A DUSTY BLUE WEDDING
The Merriam-Webster Dictionary defines DUSTY BLUE as:  a variable color averaging a pale blue that is redder and darker than average powder blue, redder and less strong than Sistine, and greener and stronger than average cadet gray —called also mist blue, misty blue

A Dusty Blue wedding is beautiful, often serene, calm and light in its effect.

If you have too much white in the blue it could become "Baby Blue" and less white in it and it  become "Light Blue".

Dusty Blue pairs nicely with other shades of blue, grey or slate.  It's beautiful with shades of pink blush, beige or white and gorgeous with the right shades of lavender, lilac or purple.

Takes on a more modern look paired with metallic colors and the color becomes more depth with shades of maroon.

If you are seeking a Vintage Look - maybe a "Jane Austin" style wedding would embrace the Dusty Blue color perfectly.