I'm curious why you didn't go the other direction: build an accessible web page and then try to make it attractive to sighted people. No need for a template -- just straight HTML with black text on a white background.
I'm not trying to be facetious here. I'm genuinely curious if there are market pressures that make a "good looking" website higher priority than an accessible one -- for example a need to look impressive to stake holders who are not visually impaired.
"We didn't think of that" would be an OK response :-). I'm just curious about the challenges for a startup in this kind of market and where one might have to make surprising compromises.