Think blues are hard to match - could equally be Derwent Blue depending on what LR had left over before they changed paints!
Derwent possibly looks a better match to your photo, but really hard to tell.
Couple of options to suggest:
1) Some Halfords are able to mix paint (or at least order it) and have colour swatch books - more trustworthy than computer monitors and something you can hold agaisnt your panels
2) Gamble and order a touch up paint stick to check the colour - about £10 - I have used carpaintrepair.co.uk for 3 different vehicles and they've been fast and reliable, but there are loads of others
Thanks Station House, i will go to halfords in the week, with it being an old Land Rover the original colour will have faded over the years, so there match should be to its current colour, then will match well.