To get the pastel colour I usually buy the most pigmented colour and blend it with my conditioner (example: Flamingo Pink, a tiny dash of Violet + conditioner gives pastel pink). Why? Because it’s cheaper than to buy an already pastel pink. I only wash my hair once a week, and when I do I add a small amount of colour to my conditioner to maintain it.
There is only ONE Directions semi-haircolour I really hate, and it’s Bright Daffodil. It washes out with EVERY wash from a great bright yellow, to half it’s nuance. The pigment are not good enough. It puts shame on the Directions name. I love the colour, but it ruins me, and it makes me seriously annoyed…
I can’t really say exactly what colour is used for what hair beneith because I always just blend in my hand as I’m in the shower. But I know sort of…
White and grey hair
Violet (variously small amount)
Violet (or Turquoise and a larger amount of Violet)
(sometimes with Flamingo Pink added)
Bright Daffodil - it washes out too easily :(