image/color/palette

Guided tour · Image · pkg.go.dev →

Pre-built palettes: WebSafe (216 colors) and Plan9 (256 colors). Useful for GIF encoding.

Usage

WebSafe / Plan9

p := palette.Plan9       // 256-color palette
p2 := palette.WebSafe    // 216-color 6×6×6 cube
img := image.NewPaletted(image.Rect(0,0,100,100), p)