Can i use food color in latex paint?

No, go to the paint store they can make any color you need.Can i use food color in latex paint?
I wouldn't. Someone here said she did that and it washed off the wall pretty easily. If you want to change the colour of your paint a little, get some acrylic craft paint in those little bottles. If you're darkening a colour or changing the colour of a light coloured paint, you might not need much, but if you're trying to lighten a colour, you might need quite a lot and it might be cheaper and better to buy more paint in that colour. Mix very thoroughly after each addition