Google - What color should my heels and purse be if my dress is glitter pink in peach color and just

All you need to do is lay the purse and shoes you like on the dress and when you like the way they look that will be the correct color. Do not limit yourself to the same color as the dress try black, gray and even some soft greens.
If you are shoping for new items you can take the dress with you.
One tip neon lights used in stores can distort the color so check it outside the store in sunlight to make sure it is right color. Then return it if color is not right.