After years of wearing loads of bright colours and having a lot of clothing I went completely off them and wanted a more muted,pared down wardrobe. I think my skintone has changed as I have got older and softer colours suit me more.
Firstly I gave a lot of my stuff away. My eldest daughter looks fabulous in brights so she got a lot but the rest went to charity.
I decided on a simple palette, clean lines and to buy things in natural fibres. The colour palette I settled for is soft navy, pink toned grey/ashes of roses, blue toned grey,ivory and taupe/pewter. I still have black but I wear a scarf or I don't wear it too close to my face as it washes me out without a lot of make-up.
Instead of jeans/trousers I wear tube style maxi dresses. I have loads of these and they form the foundation of my wardrobe. Other wise I have-
Cashmere v-neck and scoop neck jumpers and cardigans
Slouchy knits in merino and cotton
Breton tops
Boatneck tops
Linen t-shirts
Linen swing vests
Slouchy jersey/trapeze tops.
Shoes
Birkenstocks mayari
Fake converse in metallic linen
Oily leather boots in taupe, soft tan and grey.
Various ballet pumps
Strappy silver flat sandals.
To add variety I have a selection of bags,scarves,necklaces,rings and bangles.
I overhauled my make-up too and now wear pink/taupe colours- my current favourite lipstick is Revlon Pink Truffle. Because my clothing is more subdued I have found I need less make-up.
What I would say is that if I find something I really like I often get two of the same thing. I have found that having a capsule has made me far more picky about what I buy. Although it is not a small wardobe there is not one item in my wardrobe that I don't wear. I like everything and always feel good in my clothes now. For me it isn't boring. Boring was wading through stuff feeling guilty for not wearing it and finding looking put together stressful.
In essence I would say -
identify a small collection of colours that look good on you and all work together. Looking at sci/art charts helped me visualise shades that are harmonious and to decide what I liked.
Next work out what lines suit you.Look at your proportions and read up on shape types.
Buy the best you can afford and buy natural fibres wherever possible. It need not cost a fortune. I have bought a lot of my cashmere etc from eBay and charity shops. Do make sure to launder them properly.
Lastly it is worth spending money on good leather shoes and boots and bags.