Anyone used Homebase's Dulux colour mixing recently?

[GulliverUnravels]

Sorry - super boring question and it breaks the MN "no feature walls!" rule... but I saw this room recently:www.thedesiwonderwoman.com/2015/09/project-apartment-bedroom-makeover.html#comments and really want one like it!
My room's actually already not far off, but I'm missing that glorious green wall. I think Dulux Dublin Bay 1 will be a close match, but I can't find prices anywhere! Anyone bought a mixed paint from them recently and can give me a ballpark price? I'd probably go for a soft sheen finish, and would only need about a litre. I've always just bought boring colours off the shelf, and I don't want to spend 2 hours trekking down to Homebase and back only to find the colour mixing is obnoxiously expensive!

Dammit, that link goes to the comments instead of the pictures. Should be www.thedesiwonderwoman.com/2015/09/project-apartment-bedroom-makeover.html

I had a crown one mixed for me in Homebase recently and it was £55 for the biggest one they did. It would've been cheaper but I got the super scrub option which you can scrub 100 times before the colour goes apparently.

Thanks @RiojaHaze! That's the sort of price I wouldn't be willing to pay (for just one wall) so it bodes well that you paid that for a much bigger tub of a specialist paint.
I'm hoping to spend no more than £30 as we have a few other according to DH more important than a beautiful green wall expenses at the moment.

I thiiiink that a 2.5l tub of the toughest matt Dulux mix-on-demand was £27, the less tough ones are a bit cheaper. That was at Wickes.

I got a 2l Dulux mix matt at Homebase for £21 this summer.

Super - thanks! Those are budget-friendly :)