Looks like you have more than one grey in that figure. It's also mostly a very pale grey.
This is how I approach touching in chips - there may be other ways - but this is mine.
I would start with a White or even Ivory paint - and a plain white surface, (I use old lids from butter, marge or even yoghurt pots that you can dispose of afterwards). Gradually add in touches of light grey to the white and paint a surface with a series of 1cm squares (keeping a record of what amounts you use. I usually number the squares in pencil - and record what goes with the number!). I use a cocktail stick - and count the drops. (e.g. start with four drops of white - then one drop of grey mix - paint on your test surface - then wait.). Do wait until dry, as it usually changes colour a bit - then compare with the figure. When you are there, and it might take a few attempts - you will see it.
Grey can be a strange colour - so if you can't get it with two colours - try a touch of blue as well. (and by a touch, I mean a tiny addition).
Re-touch with the approprate mix once you're satisfied - using a light hand. Remember, it's better to do it twice lightly - rather than have a big blob sitting there for eternity.
Do the same for the shade creases in the "material" of the coat - if they are chipped too.
Remember to keep the record of the shade(s) - and how you got there - in case you drop it again.
Best of luck with the repair, johnnybach
