New hair colour but now feel washed out clothing-wise

[BiggerBoyMadeMeDoit]

My natural hair colour was a dark brown. I was many shades of vibrant reds for over 20 years. I now have too much grey so have embraced it and gone silvery/ lilacy blonde. Love the colour, it’s suits me but my wardrobe doesn’t suit it now.

What colours should I aim for now or should I just give up and wear beige elasticated trousers and Velcro sandals?

Hair colour is only one factor in good colours that suit, skin tone plays a massive part also, so no one will be able on here. Will warm shades flatten or lift you?... Depends on hair+skin.
In your shoes I'd go to house of colour and have a colour consultation, you'll come out inspired and ready to revamp your wardrobe in perfect colours for you that will be an investment for years.
There are threads on people's experience of that on here that you could search and look at.

I have sallow skin tone but very pale and green eyes.

I usually wear greens, purples, black, grey, blue.