How to Add Color Output to a Go CLI

Use the github.com/fatih/color library to wrap standard output with ANSI color codes. Install the package and apply color functions like color.Red or color.Blue to your print statements.

go get github.com/fatih/color

package main

import (
	"fmt"
	"github.com/fatih/color"
)

func main() {
	color.Red("This is red text")
	color.Blue("This is blue text")
	fmt.Println("This is normal text")
}

Adding color output to a Go CLI makes your command-line tool's text easier to read. It works like highlighting text in a document, using different colors to separate errors, warnings, and normal messages. You just install a small helper tool and wrap your print commands with it.