blue lo-fi grainy gradient texture. colorful gradient background.

80s 90s abstract aerosol backdrop background banner blue blur blurred blurry bokeh brush circle colorful combinations cover creative degradado design effects emerald filter filtered focus glimmer gradient grain grainy green harmonious hue light lofi media minimal mixed multicolor nineties noise nostalgic ombre overlay paint pastel poster round saturation shadow smooth social soft spray stain template texture textured trendy wallpaper warm