Welcome! I think that might be tricolor sedum. I'm not positive, though. If I'm correct, it does flower with small pink flower clusterss in the summer.
Here's a pic:
Another possibility is Crassula ovata 'triccolor', and here's a pic of it. It also blooms, but only when it's really happy:
Both of these plants are, indeed, succulents.
"Isn't it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?" - Douglas Adams