Pixel Art Favicon Design — Crafting Icons at Tiny Resolutions

Pixel Art Favicon Design

At 16x16 pixels, favicon design is essentially pixel art. Each pixel is a significant portion of the entire icon, and small decisions have outsized impact on the final appearance.

Pixel Art Fundamentals for Favicons

Grid Alignment

The most critical rule: align key features to the pixel grid. When a line falls between pixels, the renderer anti-aliases it, creating a blurry appearance.

Sharp (on grid):        Blurry (between grid):
████████                ▓▓▓▓▓▓▓▓
████████                ▒▒▒▒▒▒▒▒
                        ▓▓▓▓▓▓▓▓

Limited Palette

With only 256 pixels at 16x16, fewer colors often look better:

• 2-3 colors maximum for the simplest sizes
• High contrast between foreground and background
• Avoid gradients at 16x16 (use them at 32x32 and above)

Designing Step by Step

1. Start with a 16x16 canvas in a pixel art editor
2. Block out the basic shape using a single foreground color
3. Refine the silhouette — the shape should be recognizable even as a single color
4. Add one accent color if needed
5. Test at actual size — zoom out to see how it really looks
6. Scale up to 32x32 — double each pixel, then add detail to the larger version
7. Continue scaling to 48x48, 180x180, etc.

Tools for Pixel Art Favicons

• Aseprite — Professional pixel art editor with animation support
• Piskel — Free browser-based pixel art tool
• Figma/Sketch — Design tools with pixel-snap features
• Any image editor — Just set canvas to 16x16 and zoom in

Testing Pixel Favicons

Always test your pixel art favicon:

• At actual size (not zoomed in)
• Against different browser backgrounds (light and dark)
• Next to other website favicons in a tab bar
• As a bookmark in the bookmark bar
• On both standard and retina displays