4.5 (2) 14. Blue Aura Wallpaper for iPhone & Phone Opt for a pastel colour palette to create soothing and calming aura wallpapers. These gentle colours can evoke feelings of tranquility and balance. How good do you think this post was? Click on a star to rate it! Submit Rating Average rating 4.5 / 5. Vote count: 2 No votes so far! Be the first to rate this post.