Developing a Core Wardrobe - Pt I

For a while I have wanted to redo my wardrobe. I had a few years of changes, first being pregnant and then trying to lose that weight. I have finally felt stable over the last six months. Now, it is time to make a functional wardrobe that would serve me professionally and in my free time.

I started with this article 
http://theviviennefiles.blogspot.com/2011/07/french-chic-expanding-on-core-wardrobe.html
and the breakdown is along the lines of
button downs (2): white, pink
sweaters (2): yellow v-neck, grey cardigan
t-shirt (1): white,
pants (2): gray, jeans
skirts (3): multi, black, grey
dresses (3): grey, peach, multi
outerwear (3): long coat, jacket, blazer
The article points out the original set as being too sparse. I agree! I even think that about the expanded set of clothing. 

I love that this set of clothing is so super coordinated, and I want to pick out a set of colors that will focus my shopping and sewing. I have mixed feelings about the black/gray palette. I like browns, too, but maybe that is not helpful in developing a core closet. Maybe it is possible to do a black/grey primary neutrals for winter and brown/beige for summer? I am having a tough time deciding which ones to go with here.

In general, my current closet contains quite a bit of dark colors, and I usually find it easier to dress and buy for winter than summer. I have trouble with summer: finding colors I like and that look good on me. Maybe time for a color analysis.