If I'm wearing a blush dress with ivory lace, which colour should my flowergirls wear?

All ivory, all blush, mix of both colors ... also the style of the dress help you decide what match better . 

We would typically recommend incorporating an element of blush either into the dress or the sash.

If you're wearing a blush dress with ivory lace, there are a few options you can consider for your flower girls dresses to create a harmonious look:

Blush Pink: To maintain an elegant theme, you can choose soft blush pink color for your flower girls. This color aligns with the blush tones in your dress, creating a charming combination.
Ivory: For a more traditional and classic look, you can dress your flower girls in ivory. This color matches the lace details of your dress, establishing a seamless and sophisticated ensemble.
Mix of Blush and Ivory: If you want a closer match that coordinates well with your dress, consider dressing your flower girls in ivory dresses with blush-colored details or accessories: sashes or wreathes. These colors bring a touch of elegance and romance.
Light Gray: For a contemporary and neutral option, light gray dresses can complement your blush dress beautifully. This understated color adds a modern twist to the overall palette, allowing your dress to stand out while still tying everything together.

Remember to consider the age and preferences of your flower girls, as well as the overall theme and ambiance of your event. By selecting a color that harmonizes with your blush dress and ivory lace, you'll create a cohesive and visually pleasing aesthetic.