Help - Transparency blend on white background

I hope this is a simple fix and I am missing something very obvious. I would like to see the original colour of the dark green shapes in the images below. When I hide the transparency grid, I see the original colour, which is great. However, when I show the transparency grid, and use a white background, the colour of the shapes disappears - this is obviously the way they show when I export them. Is there any way to retain the original colour when the object is blending with the other shapes (the light green)? I could of course separate the overlap into new shapes, but I like the flexibility of being able to move the entire shape around.

Using Adobe Illustrator 2025