no such thing as too black unless you're wearing lots of eyeliner etc and channeling morticia.
Otherwise just add a colourful scarf or some cool jewelery or something.
I'd prefer someone who had common sense and a general ability to acquire and apply knowledge and skills over someone who has acquired a large knowledge base but has little understanding on how to apply it.
aka, I know lots of very smart people who lack a lot of life skills and a lot of "dumb"...