Textbox color superimpose onto other color when opening in MS Edge

I am creating a set of 3 forms and I want to distinguce each form by using different colors in the fillable textboxes... So far so good.

But when I open the forms with MS Edge (which most of the relevant recipiants of the form use), a blue textbox has been superimposed over the colors, thus messing up the colors.

Any way to get around this, or is it a compatability problem?