Original RAL 6003 Olivgrün and 1/72 scale ?

I recently started with some 1/72 armour …
I wonder what paints and colours I’ll use…

Till now I painted with Tamiya and Revell Acrylics…

On one hand, it is clear to me that the recent RAL 6003 Olive greenish colour does not match 100% the wartime RAL 6003… Colour these days looks brighter?
On the other hand, working in 1/72 needs a brighter colouring on its own…

Revell olive green is not 100% tamiya olive green

???