Slate grey using Wella 8/81?

[Nashbag]

I'm currently silver (level 9) but wanting to deepen the colour to a level 7/8 grey shade. I have wella 8/81 but I'm not sure which shade to use to make the colour deeper. The two photos are what I would like to have.

 

[Nashbag]

I think I'm gonna stick with colour touch at the mo, if it doesn't come out dark enough I'll try out the 5/19

Mollie1985, do you think using just a tiny smudge of 7/89 would help? Another reason for going deeper is because I have a slight warm tone to my roots so hopefully going down a couple of shades will cover that.

Thanks for the suggestions! Xx

 

[Noodle]

OP: as you are not a hair professional, this thread has been moved to Consumer Queries.