Natural ash brown semi permanent hair dyes

If you want a very ash result something like Pravana silver over the top of your current colour. It is a direct dye, but a professional quality one so will last better than 8 washes
Using oxidative dye (permanent or semi permanent) is lifting your natural colour and revealing warm tones in your base. So either stick with direct dyes as they dont lift (they don't use peroxide) or lighten your hair to one level above the colour you actually want before using an ash dye in the shade you want.

Thanks for your reply! If I did use something like Pravana Silver would this look like a natural hair colour? Or would it turn it actually silver/grey? Would using touch of silver shampoo on my current hair do the job I'm hoping for over a longer period of time do you think?

Thanks!

Have attached a couple of photos of the type of colour I'm looking for. Something somewhere I between them both.

It will just tone it ashy unless your hair is light blonde.
It would be easier to advise if you add a pic of your current colour

Sure! Here is a picture of my hair at the moment. The camera seems to make it look slightly lighter than it appears in reality. It also doesn't look so reddish in natural daylight. It looks this way with indoor lighting.
Thanks!

Trying to attach it again!

I would say it is too dark and too orange for silver dyes to have much effect.
You are going to have to lighten beyond orange. So either bleach or a permanent dye, to one level above that which you require. then you can tone out the warmth.
To tone your current colour to an ash shade it would be a very dark brown.

Thanks for that! To be honest looking in a mirror it doesn't look nearly as orange as it does on camera, but it is very  warm and has lots of underlying red tones in there I think. I guess that's why the cameras picking it up. Do you think I should dye it with a permanent dye in a light ash blonde shade, and then follow up with a toner of some description?
Thanks for your help, I'm not very experienced in toners etc as have only really either dyed my hair myself with a standard high street dye or have had it done at a hairdressers. Looking to do it myself from now on to save money so would be great to learn!