rainbow background colorful gradient
Prompt
Photorealistic long-exposure abstract light-painting background on a deep black studio backdrop, filled edge to edge with layered rainbow filaments forming translucent wave meshes and intersecting geometric curves. Fine luminous strands sweep diagonally and horizontally across the frame, with warm red, orange, and yellow ribbons glowing in the upper half, vivid green through the center, and saturated violet, magenta, cyan, and blue arcs across the lower foreground. The mood is energetic, futuristic, and celebratory, with crisp neon lines, subtle glow, and rich contrast against pure darkness. Dense overlapping composition, no central object, designed as a colorful gradient backdrop. Shot like a macro studio capture on a 50mm lens, f/8, long exposure, sharp line detail with slight depth layering.
Negative Prompt
people, faces, logos, trademarks, readable text, watermark, real landmarks, symbols, product labels, oversaturated HDR halos, blurry artifacts, pixelation, muddy colors, banding, low resolution, melted lines, distorted geometry