I suggest you take the car to a local paint shop who provide paint mixing facilities. They should be able to colour match your car trim colour for you from their colour swatches and produce a large Custom aerosol can for you for around £15. Quite often the trim colour is the same as the main car body but with a little matting agent added to give a matt finish.Thanks for this.
Did not take on board it has been resprayed.
Will use the colour codes suggested.
Subsequent work will not emphasise retaining originality in this case.
What a shame.