Yes - it's in retro British Railways 2 tone green. It's had BR monastral blue, intercity mainline (my 1980's and 1990's photos are packed away but they do include it). I think I also.have a photo of it in blue with full yellow cabs, small numbers and small logo.Was beeching’s legacy (47830) ever repainted? I assume it was but if it wasn’t then it would win.
It got phased out by the end of 2021 unfortunately, the new livery is similar but there's no red this timeChiltern Railways blue is essentially the same as back in 1998 aside from contrasting doors I think
No SWT started repaints into blue with white and orange stripes, all changed to red during refurb about decade agoDid South West Trains change their livery at all, as I'd imagine there will be 455s first painted into that livery in the late 90s, still looking much the same other than the Southwestern logo stuck on the side.
Yes it is. The OP's opening post mentions "revenue earning service", which excludes all those lovely old non revenue vehiclesWhat about some of the departmental stock? Some of that must be running around in out of date liveries.
Indeed - post #30 of this threadDepends how you define "revenue earning" - charters earn revenue for their operators...

Nome of the 325s are in their original livery, having all been repainted over the last 5 to 7 years by DBThe class 325 fleet, built around 1995/96 in Royal Mail livery
No, there's only a handful still in existence. One was displayed in the NEC at the last Warley Model Rail Show before Covid.I bet there is something like an HAA with the coal sub sector logo still running. (Are there any HAA's still active?)
Loads of bogie tanks with small Petroleum logo onI bet there is something like an HAA with the coal sub sector logo still running. (Are there any HAA's still active?)
Yep, they were rolled out with a yellow stripe running the length of the unit on either side, sharply curving up at each cab end. All remaining units are now just in plain red livery. One 325 (012) was scrapped in 2012, long before this livery change occurred.Nome of the 325s are in their original livery, having all been repainted over the last 5 to 7 years by DB
Any 08s still in BR blue? I think there may be one at Canton.
Also a few Freightliner FTA/FSA wagons with their Railfreight diamond logos starting to show through from under the old Freightliner red triangle logoLoads of bogie tanks with small Petroleum logo on
Surely repaints , not the original applicationAny Steam engine running commercial I.e. West Coast or Vintage trains trains would surely be the oldest livery in revenue service.
Oòooh, well played! I completely forgot the Whistler's provenance.If preserved locos are permitted on this thread, 40106 has only carried Green from entering traffic under British Rail