That's never a standard Sherwood Green. Unless of course camera / monitor is not replicating the actual colour correctly. My MK2 Jag is Sherwood and it's nothing like that!
Names mean next to nothing
BSA standard preWWII was Brunswick Green
But Brunswick Green is not a colour but a type of green made from a blue base
There are 4 official Brunswick Greens and none of them are a match for the hand painted coach enamel BSA used
And even then the Brunswick Green BSA used looks totally different depending upon if it was a deluxe model so was painted over chrome or a std model so was painted over a cream dase coat .
Then there is optical bleed through
In most cases you need 4 to 5 coats of the top coat before the bleed through from the under coat is overcome
Unless the paint has a strong white base then each coat will make the bike darker .
The stunningly beautiful "Golden Beige" of the 1950 A 10's looks that way because it is painted over a black base coat
The 1951 models are a lot creamier and shallower looking because they are painted over either an off white underrcoat or a green rubbing coat .
Then there is colour identification of the camera and that varies greatly between the film used which is the closest you get to reality ( and even then developing can shift the colours ) and the CCD in the digital camera which are very bad in rendering reds
After that there is the fact that your monitor uses addative colour on the image while printing & painting is subtractive colour
And this is before we start with out of calibration monitors
THis is why the UK invented the RAL colour identification scheme & printers adopted Panatone
However even then the colours look totally different when printed on high gloss calendar stock through to newsprint
SO there are 4 ( from memory ) different sets of Panatone colour swatches.
Then because countries like to do these things another 1/2 dozen series of "standardised" colours got invented .
