Wyn's New Pastel is a great variety for weddings. The colouring is so soft and enchanting. 
 
Colour: Peach/Soft Yellow/Blush
Form: Informal Decorative
Bloom Size: 7”
Plant Height: Large (4' to 5')
 
Oops... skipped picture day! If you would like to see what this variety looks like, below is the link to google images.
 
wyn's new pastel dahlia - Google Search