Tried on my dress that came in.... ended in panic attack

Good new is i tried on my dress that came in about a month a go. i have been stressing over the color becuase in the store i was told diamond white and when we went to order i said just like the sample.. well turns out sample was a slight ivory. Dress fit wonderful.. i love it and stomach dropped and i broke down in tears. I love it so much i felt like a princess. Here is where the panic attack happens... turns out that my bridesmaid dress is royal blue with white trim along top and down the back... is this gonna make my dress look dirty. then the flower girl dresses are being hand made in ireland by family and i told them to make them diamond white because that is what i was told my dress color was. Long story short... it is too late to change bridesmaid dress they are due to arrive march 23. i am so scared... i dont want to look dirty. i will update with a pic of there dress. Has anyone had this diliema or have a solution.


Updated: this is a picture of the bridesmaid dress to give you an idea of how much white i am talking about