purple, pink, white, and black abstract gradient wave with grainy texture on dark background

purple pink white black gradient wave abstract background texture grainy glowing design banner header digital modern sleek artistic vibrant smooth dark noise visual aesthetic color contemporary chic dynamic stylish contemporaryart minimal bold decor pattern digitalart soft creative colorful trendy elegant vivid tech futuristic minimalistic smoothgradient wavepattern glowingdesign cool bright vibrantdesign artisticwave