I'm coming up to a big birthday and was considering treating myself to a "classic investment" type bag (Mulberry or similar).
My problem is that I can't decide whether to get a tan one or a black one. 

I often wear tan brogues/boots with denim or navy, etc., but I also like to wear e.g. black biker jacket, jeans and black boots, or black boots/shoes with dresses for work.
So, is it okay to rock tan and black accessories together? Any opinions on which would be the better choice of colour for an investment bag?