pastel gradient abstract backgrounds. soft tender pink, purple, orange, green and blue gradients for app, web , webpages,

abstract background design gradient smooth modern bright blue art pattern blur graphic wallpaper light texture vector soft color banner copy space template colour horizontal purple vibrant poster rainbow colourful fantasy defocused creative creativity curve futuristic glowing empty shape dark colored effect flowing neon softness website technology pastel backgrounds tender pink orange green gradients app web webpages banners greeting cards