Why Does My Pokemon Have A Blue Background? Posted on by Lewis Site-Wide Activity › Forums › General Discussion › Why Does My Pokemon Have A Blue Background? Tagged: Blue Background This topic contains 0 replies, has 1 voice, and was last updated by Lewis 1 year, 3 months ago. Viewing 1 post (of 1 total) Author Posts September 24, 2016 at 8:03 pm #597 LewisKeymaster Wondering why your Pokemon has a light blue background? A Pokemon will have a light blue background if it has been caught in the last 24 hours. After 24 hours the blue background will disappear Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.