⚠️ Photosensitivity Warning

This site displays rapidly changing colors. Scrolling and searching may cause sudden color changes that could trigger seizures in people with photosensitive epilepsy.

Please proceed with caution and consider your sensitivity to flashing content.

📦 Placeholder API

Free solid color images. No tracking. No watermarks.

Basic Usage

https://rgba.lol/rr/gg/bb/WxH.png

With Alpha

https://rgba.lol/rr/gg/bb/aa/WxH.png

Examples

red

/ff/00/00/60x40.png

green

/00/ff/00/60x40.svg

blue 50%

/00/00/ff/80/60x40.png

Formats

.png - Raster image (max 4096x4096)

.svg - Scalable vector

🤖 MCP Server

Works with Claude, Cursor, and other AI tools!

https://rgba.lol/mcp

get_placeholder Generate placeholder image URLs

random_color Get a random color placeholder

generate_image AI-generated solid color images™

rgba.lol

Scroll through all 4,294,967,296 colors. Click to copy rgba(). ⚠️ Fast scrolling may cause flashing colors.