Colorful Abstract Paint Stroke with Rainbow Gradient

Here's an intriguing abstract visual that captures a beautiful spectrum of colors. It has a smooth, flowing appearance, almost like a digital brushstroke or a streak of light, moving diagonally from a cool blue and green to warmer yellow, orange, and pink tones. The way the colors blend creates a sense of continuous motion and energy, standing out wonderfully against the deep black backdrop.

abstract - rainbow - gradient - color spectrum - paint stroke - fluid art - colorful