Is there a way of knowing what shade of black my forester s turbo is?or is there just one colour of it?

Have a look at the vin plate on the n/s strut tower you'll find the paint code there

it will be on the vin plate, the code for obsidian black is 32J (I love massive tit's) mica black is 08v
 
have a look here http://www.scoobypedia.co.uk/index.php/Knowledge/SubaruPaintCodes

Ive got black mica 47a but paint code is from 1994 lol im on a w plate