Wedding colors: purple, silver and...yellow?

Okay so im still in high school so marriage is years away, but what girl doesnt imagine her wedding? So I really like purple and silver together, and would like this to be in the choler scheme, but I really love just light yellow flowers with like green leaves and some white flowers as the bouquet for the bride, because I like how that looks with the white dress. If I added yellow to the scheme so I could do yellow flowers, would it look bad? Because I feel like it's a big hit or miss