Which color will u recommend for a first b bag?

I think it depends on what you like to wear. I chose a neutral city bag (2005 caramel) as I knew it would go with most of my wardrobe.

Another good choice, in my opinion, would be black.
 
Since I just purchased my first b-bag earlier this month, I wrestled with this question for a while! I chose the style THEN I chose the color. For me at least, it was important to do it this way, because I think certain colors look better in certain styles. I ended up choosing a city in mogano. Mostly because I LOVED the depth of color in mogano, and I knew that I wanted a brown bag in that style. If I went with a first, I would have gone for black or plomb. For a twiggy, I would have gone with a fun blue. A lot of it just has to do with personal style, wardrobe, and lifestyle, KWIM?
 
mine was marine! Even more versatile than black for me, because it looks great with denim. As all the others said it depends on your wardrobe. Now I know I love the bags, I'm edging towards brighter colours.