Don't be fooled by your monitor settings, Geoff
These vehicles are painted correctly with the original shades found on the vehicle. The Chocolate brown is the correct RAL 8017.
What is probably throwing you off is the Dunkelgelb shade. Now all these colours are what is called "mimetic". this means they "change colour" with the light. This of course is physically impossible. What it is really is our own brain, both concious and subconcious working to make out what we are actually seeing and the detail. this means that our brain wil subconsiously lighten or darken particular colours to make them and the detail stand out using our memory and the surroundings that we are seeing. If it is a bright sunshine day then the colours are lighter, if a dark cloudy day then the colours will be darker.
These are original chipset 7028 colours, painted to full depth on a white background on a cloudy day. They are posted in order of usage starting with Dunkelgelb Nach Muster then going with RAL 7028, Var 1, Var 2.
Depending on how your monitor is set with white temperature etc depends on just how the colours show.
Owners and restorers of original builders such as myself have not only access to the vehicles but also archives and some paint manufacturers who have a private agreement, especially in Germany to produce these colours, by using modern formulaes and translating from original formulae to the actual shades so we can use them in accordance with health and safety regulations. The paint I use comes from Germany and is a non- toxic acrylic paint from an OEM using their archives which has chipset and 10 slight shade changes for me to choose from (5 darker and 5 lighter from Chipset) These shades variants are within the 10% tolerance set by the OKW and which the manufacturers managed to keep to right up until the wars end.
Every paint batch is tested at the factory and computer checked with the original batch paint sample or chipset and the last delivery of RAL 7018 Ver.2, 6003 and 8017 had a variance tolerace of 0.01% from chipset for each colour. Our eyes and brain won't even see that! Neither will it register anything much under 11% difference unless it is a very bright sunny day.
Every armour or soft skin that I start to restor begins with a complete was of the vehicle to remove all dirst and dust and is followed by a walkround both inside and out where paint samples are collected and sealed into plastic packets with colour and area of sample marked on the packet.
The vehicle is then stripped down as much as possible to its component parts. Paint samples are still collected from equipment that could not be accessed properly during the initial assesment and walkround.If the vehicle has zimmeritt applied then photos are taken of the patterns amd photogrammetary used to produce a complete vehicle pattern. Samples of the Zimmeritt are taken from different areas and labelled like the paint.
The paint is sent off to our paint manufacturer in Germany where they will test the colours and match to their archive chipset and batch samples and produce the closest colour that matches. the Zimmeritt is sent to a testing lab that produces a report on what materiels the Zimmeritt is made out of.
The vehicle and equipment is stripped back to the bare metal. EVERYTHING is taken off. Paint, Zimmeritt stencilling etc and the rebuild starts. Working from blueprints etc what is broken is remade, even down to getting a lens manufacturing company to remake the gunners sight for us for one Panther G. 99% can be done on our own repurposed machinery, lathes etc. What we can't do is outsourced using a barter system. Our armour main guns are refurbished back to full use by Rheinmetall who actually made quite a few and our handshake agreement is that it is done as training of apprentices who get to work on a very famous piece of hardware. They are also well supervised and there is more than one employee who wants to work on these things!
By the time the vehicle rolls out of our large workshop (these things are not small) they are more or less factory fresh and it is all done by modern retired or injured veterans. The zimmerit is remixed using the original components and we apply to correct depth and pattern using wooden molds and the photogrammetary models.
I never put a timescale on the restoration. It is done when we are happy that it is right. Of course these things are 70+ years old and have issues all the time. Just like we veterans!
Nothing beats taking these down to be fueled up and having all the traffic get out of the way or having to form an orderly queue. they are 3.5 meters wide and 40 odd tons. you mess with these in your car and you will have some explaining to do to your insurer!