Black ganache -- Can I make this with black cocoa?

Hi baking friends! I've got a wedding cake coming up and the couple is vegan. I'm planning on making a coconut milk ganache for the cake construction and covering. They're also interested in making the cake black in color. In the past I've made plenty of black buttercreams using dutch process black cocoa (and I love it both taste and color-wise), so I'm wondering how possible it is to color ganache this way. Anyone have any insight before I start my experimentation?

Thank you so much!