vibrant, speckled gradient transitioning from orange to purple to blue.

gradient vibrant speckled orange purple blue background abstract texture color bright splash artistic wallpaper pattern backdrop design watercolor spectrum hues colorful art painted canvas ombre blend dye vivid saturation creative modern decoration rainbow gradienttexture pastel mix colorfulbackground gradientbackground artisticbackground colorfulspectrum pigment brushed smooth gradientdesign fantasy multicolor transition neon colorwave ink