I don't know if It's a just talked topic...
Yesterday I have try to match RAL table color with 2 Zaccaria Control Panel (I have to repaint it) and 1 Quasar from frontal panel (..it's lack of CP)
The color are not the same to my eyes, anyway the closest are:
"DEEP BLUE" (..not so usual, I have see, Vanguard in Dark Blue ver.)---> RAL 5011
BROWN (usual on Stars and Vanguard)---> RAL 8019
AUBERGINE (usual on Quasar)---> RAL 4007
..the not so closest to RAL it's for me the AUBERGINE (DARK VIOLET)..for the other probably I'll take a RAL Spray...
The paint color made on commission by reference pattern will be more accurate, but for one little surface, used 1 time only, probably the RAL standard spray will be good..
If you have more color to add I'll be happy to know..