I have a young hypo boa as well. From what I've seen of pictures their color can change drastically as they age, usually for the better. I have to admit my girl -- although she's very light with a bright orange tail -- looks somewhat different from the pics I've seen of adult hypos, but I've noticed that the younger ones resemble her a lot more. And her parents (I've seeen the father in person and pics of the mother) look a lot more orange than she does. So I'm thinking they grow into their color a bit over time.Your snake also might just be in or approaching shed.
Congrats on the new snake.Would love to see pics when you can. Baby boas are the cutest.