Paintcode 456. What's the name?

Hi all. I am new to the forum after just buying a old style Twingo in Germany.



I'm am about to buy some parking sensors and want to paint them the same colour as the car bumpers. The door sticker says MV456 which I guess is 456. When I search for that it comes back with a electric blue style colour. The actual colour of the car is a metallic mint green colour.



Can anyone help me out with the colour name and a place to get some touch up paint.



Thanks