# Heatmap · Sepia

> Animated WebGL shader background in the Heatmap style. Sepia variant. Generated by the 21st.dev Shader Builder. Adapted from Paper Shaders under Apache-2.0. 6-color palette (#000000, #FF4C00, #FFE679, #6BD7FF, #2F63E7, #11206A). A drop-in, zero-dependency React component for hero sections and animated gradient/noise backgrounds.

- Author: [Paper Shaders](https://21st.dev/@paper-design)
- License: apache-2.0
- Tags: Animation, Gradient, Background, Hero, Glow, WebGL, Shader, Hero Background, Animated Background, Paper, Heatmap
- Live preview: https://21st.dev/@paper-design/components/heatmap-sepia

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/paper-design/heatmap-sepia?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/animation.md