Can someone share with me the best way to achieve this Dark Teal Fondant?

Hopefully without having it taste horrible, if at all possible? 

And can it be achieved using marshmallow fondant? 

I’m okey starting with a manufactured fondant, if I need to. 

I’m just desperate to try to achieve this color for my daughter’s wedding cake at the end of Oct. 2023

(for some reason it’s not letting me upload a photo of it) 

This site has had problems for several years now…pictures cannot be added.  

Is there a site like Facebook etc wherein you can post the color & give us the link?