hairdye question- will this work?

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My hair is shoulder length, 'normal' texture (not fine, not curly, bit of a wave, fairly thick) got a few greys

I use a permenant dye (usually a Superdrug or Boots) in a mid-brown.

But I want to go a bit auburn -not a red but a warm red. If I dye it now I'll have red roots and brownish/red hair (not the look I'm aiming for)
I don't fancy the Hair B4 dye remover.

So, S&B ladies......

If I dye with the usual brown to get an allover colour. Then 'overdye' with a red, will I get a nice auburn.
I can't do a temperary colour because I'm going on holiday so I don't want dye washing out.
I CBA going to the hairdresser, but if you are all and say "No it's a job for professionals" then I'll stay brown tressed.

(If the worst happens can I overdye again in a couple of days? )

If it is seriously naff I'd bite the bullet and go shorter .

TIA

That sounds like a recipe for disaster tbh!

Maybe just in denial.
Two lots of permenant dye in a short time frame (possibly three) not good ?

I'll be "medium warm turd brown"

Can't you use a chestnut brown to give you some red warmth and then if the roots look too red then use a root touch up mid brown on roots only? Or don't really do too much on roots, more on ends? Maybe use a semi permanant that lasts 24 shampoos to give you an idea?

I would try what you have suggested with maybe a couple of days and a hairwash in between. I had to get 2 consecutive dyes put through my hair at the hairdressers once when the colour didnt take enough the first time. Also when you lighten hair to change its colour you normally stick a colour on that straight away too.

I wouldn't do anything drastic before holiday especially 2 dye jobs, of you're going somewhere hot you could end up with straw for hair!

If not of

I do this sort of thing all the time. I'd use an auburn hair dye straight away as it actually fairly hard to get a bright red colour using home dyes. You have use the red red in your face flame colour on top of bleached hair to get what you're worrying about. An auburn dye should give you a mid brown colour with red/golden highlights. The only concern about the roots is if you are naturally blonde. In that case i'd do the brown/red double dying.

I did it.............................

I used a Superdrug coppery medium brown (my hair is naturally mid brown ) and it's a bit non-descript TBH but at least I haven't got stripes of red at the roots which was what I was dreading.

So I don't need to over-dye but I don't have the auburn that I wanted

Oh well.
I'll need to protect my hair in the sun dilligently (got some Phillip Kingsley Swimcap that I bought for DD )