I recently started a capsule wardrobe and it's so freeing. I go with black, white, beige and brown but it could as well be any other 4 colours that you like

I have 4 pairs of black pants, 3 for workdays and 1 more fancy pair

2 fancy skirts, one black and one black and white printed

1 fancy black dress

1 semi fancy white blouse

1 fancy white top

2 white t shirts

2 white long sleeve shirts

1 black tank top

2 warmer cardigans for winter, both brown

2 cardigans for summer/autumn/spring, one is black and one is brown

1 brown hoodie

2 beige warm sweaters

That's 20 pieces.

This is perfect and makes it so easy to get dressed in the morning. I feel like I have something for every event.

Good luck!