It doesn’t answer the OP’s question but further on the subject…

https://condorino.com/2014/06/11/noa...he-impossible/

My Ron Cooper as posted in the Ron Cooper thread is painted in the following Legnano lizard yellow-inspired colour…

manufacturer : KIA Motors
OEM code: 2Y revision date 31/10/2012
Description: Greenish Yellow
Colour Ref: WDN8B No1 Density 0.943 g/ml
Mixing scheme; PARAGLAZE
Group: 2