vibrant retro gradients. colorful 70s-inspired background concept

1970s 70s 70sinspired abstract artistic background bold bright color colorful colors concept cool creative electric energetic explosion eyecatching fun funky geometric gradients groove hip hues lively neon nostalgia nostalgic pastel patterns play playful pop psychedelic rad rainbow retro retroinspired seventies spectrum swirls trendy vibes vibrant vintage vivid whimsical