That usage would be acceptable and most likely problem free.
Here is where the miscommunication could occur:
- It is blue.
- It is blue again.
- It is another blue.
For the first one, you are establishing it is blue. For the second one, by using "again" you are establishing that it is the same blue. For the third one, "another" could be misunderstood as meaning it is a different blue. IE:
- It is sky blue.
- It is sky blue again.
- It is navy blue.
To reiterate, there is nothing wrong with wording it "another blue", just trying to highlight where the potential for misunderstanding occurs.
For crystal clarity, Brian has the logic spot on again. Words like "also" and "too" indicate uniformity. "Another" is one of those tricky words that can either indicate uniformity or difference.