If you are trying to color-match with stain, it takes some finessing to get it right, even with the identical product that was originally applied.
However, the good news is that plugs can be slightly off-color with the surrounding wood and look OK.
But if you have to color-match any of the surrounding wood, you might want to have the help of someone that is woodworking savvy, especially with Cherry.
Cherry takes on a darker patina over a short period of time; say only one month in the exposure to sunlight, Cherry will darken. For instance, if you put something on raw (unfinished) Cherry, say like a piece of tape, and set it out in the sun for just a couple of days, then remove the tape - the area under the tape will have a noticeably different color.
Many varnishes have UV inhibitors in them, and this can stop the process. But Cherry can sometimes be quite difficult to work with when you are trying to color match.
And simply applying varnish can color or darken the wood even without using stain.
But as I said, if its just the plugs you have to finish, they can withstand a slightly different color or hue and still be asthetically pleasing.
The real problem is if you have a board that has been sanded on in one area that has removed the patina. In that case, try to find a High-School woodshop teacher or similar to help. If you have a woodworking store in your area, they often have woodworking classes, with resident "experts" that can help.