Is it okay to have a concealer the same shade as your skin tone?

I have a concealer stick a lighter shade than my skin tone, and I use it for my eyes. However, the few blemishes I have on my face, sometimes u can see it through the makeup (I wear powder mostly. Sometimes I wear foundation.) I don't put it on heavy, I just dab the stick on to the dark scars from the pimples I had, but I noticed when I took a picture, u could see the spots from the concealer cover-up. so today I went to go get some concealer the same shade as my skin tone to cover the blemishes, however I still will be using the lighter stick around my eyes. I think that a concealer the same shade should be okay for blemishes the fact that I'm not balancing it out like I have to do my eyes. My question is, would that work, or not? And if it won't, how do I keep the concealer spots from showing through the makeup?