abstract background . geometric seamless pattern. decorative ornament in mid-century modern art style. pink, lilac, blue

1950s 1960s 50s 60s abstract art atomic backdrop background blue business century color colors concept cover creative deco decor decoration decorative design ethnic fabric fashion geometric graphic illustration lilac mid midcentury modern nature ornament ornate pastel pattern pink purple retro seamless site style stylized textile texture vector vintage wallpaper web