blue gradient background grainy glowing blue light on dark backdrop noise texture

color gradient grain wallpaper texture background vibrant abstract multicolor design smooth soft blend pastel vivid subtle hue tone shades spectrum digital pattern artistic modern minimal trendy aesthetic ombre rainbow bright muted seamless gradientwallpaper colormix textured colorful dynamic chromatic transition faded visual seamlessblend graphic gradientdesign gradientart softgrains colorwave grainedit vibranttones artbackground blue grainy glowing light dark backdrop noise webdesign webd esign web graphics resource