Ratte

AK interactive also makes a “dark eggplant grey” which is pretty spot on (and with Mr Leveling Thinner sprays beautifully). This site here https://www.e-paint.co.uk/Compare_colours.asp gives as another close match to RAL 7015 extra dark sea grey which is available in the Humbrol range for example but I can’t vouch for in terms of accuracy. MRPs eggplant grey is too purple but they also make a FS36076 which is the closest match to RAL 7015.