if the recipe does not show salt in it, then Yes I would add more color if you are adding salt to the mix.. but use your own judgement on the color. You mite like the color with the salt added w/out any more color. then again you mite want to add more color.Color is not an exact match thing.. the only time you need an exact match is when your customer insists it needs to match a color they already use. getting the color close is usually good enough,now you need to get that bait in the right spot for the fish & get the rite presintation for the bite.
just my 2cents on color matching,