Is it my imagination or is that the same color?

Perhaps it is. We assign colors when we sort clothes. If you were part of that blue/gold dress debate you know how hard it is to get people to agree on what color something is. We've also added new colors over time. This means there are occassions where the same color is named diffrenetly. Thankfully, you'll always have the photos so you can decide if it's blue, green or teal.