Obviously this question is super personal and specific to your taste, lifestyle, etc but I am interested enough in it to have compiled my data point! My wardrobe isn't a purposeful capsule but I guess my inclination toward minimalism/frugality/neutral colors and versatility is strong enough that this is just my equilibrium. I'm able to operate very well at this level because I can wear whatever I want to work most of the time and also happen to have very simple taste. I didn't include bags (although tbh I have 2 and use 1 99% of the time), exercise clothes, or "loungewear" even though these are v important to me because keeping them minimal requires much less discipline in my experience.
pants/shorts: 7 (3 jeans, 2 dress pants, 1 joggers, 1 shorts)
dresses: 4
skirts: 2
shirts: 7 (includes 1 light sweater)
blouses: 3
tee shirts: 3
tank tops: 6
shoes: 6 (1 pair each of sneakers, loafers, oxfords, sandals, and two pairs of flats)
ITEMS I ACTUALLY WEAR TOTAL: 38
and then out of season and irregular items: sweaters and cardigans: 6
long sleeve layering tees: 6 (4 turtlenecks, 2 crew)
boots: 5 (4 pairs ankle boots, 1 rainboots)
outerwear: 5 (1 wool winter coat, 1 canvas fall/spring jacket, 1 synthetic puffy jacket, 1 down vest, 1 rainjacket)
formal stuff I rarely/never wear: 8 (2 dresses, 2 pairs heels, 1 suit (pants, blazer, skirt), 1 pencil skirt)
TOTAL INCLUDING ALL OF THIS: 68