Question
Change linked .png color to swatch color . . .

I created the selected.png shape in photoshop and placed it here. I'm trying to get it's blue to match the blue of the water on the image underneath. I've tried editing the original image in photoshop too. I created a swatch of the darker blue I'm trying to change it to, but can't for the life of me successfully change the color of the selected water body to that swatch color.