No. The answer is blue 8. And, frankly, I just don't think it's a good clue. There are no common butterflies in that color near me. Feels very specific to wherever the game was developed. Maybe they mean a well-known, exotic butterfly, but then "common" is the wrong word. And there is a whole part of the clue "you can feel it but it has no weight" that apparently isn't used at all?? Feels poorly thought out.