bash - Grep for values after second pair of brackets -

given file looks this:

0,0: (63736)  #f8f8f8  gray(248) 1,0: (63736)  #f8f8f8  gray(248) 2,0: (63736)  #f8f8f8  gray(248) 3,0: (63736)  #f8f8f8  gray(248) 4,0: (63736)  #f8f8f8  gray(248) 5,0: (63736)  #f8f8f8  gray(248) 6,0: (63736)  #f8f8f8  gray(248) 7,0: (63736)  #f8f8f8  gray(248) 8,0: (63736)  #f8f8f8  gray(248) 

going way "799,599:". need number in between gray's parenthesis line starts "590,85:".

the output should be, example if wanted data "7,0:";

248 

in sed it'd be:

$ sed -n 's/^7,0:.*(\([^)]*\).*/\1/p' file 248 

but keep simple , use awk:

$ awk -f'[()]' '/^7,0:/{print $4}' file 248