Hi , I carried out a colour match on the Silk i had in that colour and the nearest thing i could get was Volvo Safari Green ( no lie!) I aren't sure whether this is the correct colour in the first place but a few silk owners saw it and seemed to think it was correct??
it may also be worth adding that due to the nature of Silk bikes , one week theyd go to the paint supplier and get the colour matched , a few weeks later repeat this [process but this would show a tiny difference in the paint colour as it came from different batches mixed at different times ..
do you have a panel with the original paint on? Having spoken to Cive , he seems to recall Rover Platinum Silver was the colour and i think memory serves him right!