modern gradient background. colorful . trendy hipster out-of-focus . multicolored waves art for poster, cover,

waves purple magenta gradient background backdrop abstract banner design graphic yellow orange blurred poster wallpaper color colorful modern bright concept light template pink violet blurry vibrant multicolor texture smooth trendy dynamic rainbow fluid web art futuristic minimal vivid space decoration shape magic beautiful liquid presentation geometry technology generative background hipster out- -focus design multicolored cover branding banner