I finally had time to read this thread and it's been so much fun! There really is no right or wrong way to build a wardrobe, is there?
For me - my wardrobe is definitely color-focused. When someone looks at my wardrobe, they probably notice just as much what colors are missing, as they notice what colors are represented! Missing colors include: red, orange, yellow, persimmon, neon green, coral, beige, brown - primarily warm colors. Those that are represented include: gray, white, blue (all shades,) pink, blue-greens, black, cream/ivory, all berry colors, etc. - primarily cool colors.
I not only look best in cool colors, but I also prefer them - they are just more aesthetically pleasing to me (in most situations.)
Limiting my colors results in ease of shopping, as well as well-curated capsules. I love being able to walk into the doors of a clothing store and quickly peruse the selection - just going by color - and be able to assess within just a minute or so if there is anything there that I want to pull out and look at. Saves me time - and money!
Also - SarahTheWhite - what??????? Your closet is killing me! It's beautiful! How did you do that????