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# ansi-styles [![Build Status](https://travis-ci.org/chalk/ansi-styles.svg?branch=master)](https://travis-ci.org/chalk/ansi-styles) | |
> [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles) for styling strings in the terminal | |
You probably want the higher-level [chalk](https://github.com/chalk/chalk) module for styling your strings. | |
<img src="https://cdn.rawgit.com/chalk/ansi-styles/8261697c95bf34b6c7767e2cbe9941a851d59385/screenshot.svg" width="900"> | |
## Install | |
``` | |
$ npm install ansi-styles | |
``` | |
## Usage | |
```js | |
const style = require('ansi-styles'); | |
console.log(`${style.green.open}Hello world!${style.green.close}`); | |
// Color conversion between 16/256/truecolor | |
// NOTE: If conversion goes to 16 colors or 256 colors, the original color | |
// may be degraded to fit that color palette. This means terminals | |
// that do not support 16 million colors will best-match the | |
// original color. | |
console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close); | |
console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close); | |
console.log(style.color.ansi16m.hex('#ABCDEF') + 'Hello world!' + style.color.close); | |
``` | |
## API | |
Each style has an `open` and `close` property. | |
## Styles | |
### Modifiers | |
- `reset` | |
- `bold` | |
- `dim` | |
- `italic` *(Not widely supported)* | |
- `underline` | |
- `inverse` | |
- `hidden` | |
- `strikethrough` *(Not widely supported)* | |
### Colors | |
- `black` | |
- `red` | |
- `green` | |
- `yellow` | |
- `blue` | |
- `magenta` | |
- `cyan` | |
- `white` | |
- `gray` ("bright black") | |
- `redBright` | |
- `greenBright` | |
- `yellowBright` | |
- `blueBright` | |
- `magentaBright` | |
- `cyanBright` | |
- `whiteBright` | |
### Background colors | |
- `bgBlack` | |
- `bgRed` | |
- `bgGreen` | |
- `bgYellow` | |
- `bgBlue` | |
- `bgMagenta` | |
- `bgCyan` | |
- `bgWhite` | |
- `bgBlackBright` | |
- `bgRedBright` | |
- `bgGreenBright` | |
- `bgYellowBright` | |
- `bgBlueBright` | |
- `bgMagentaBright` | |
- `bgCyanBright` | |
- `bgWhiteBright` | |
## Advanced usage | |
By default, you get a map of styles, but the styles are also available as groups. They are non-enumerable so they don't show up unless you access them explicitly. This makes it easier to expose only a subset in a higher-level module. | |
- `style.modifier` | |
- `style.color` | |
- `style.bgColor` | |
###### Example | |
```js | |
console.log(style.color.green.open); | |
``` | |
Raw escape codes (i.e. without the CSI escape prefix `\u001B[` and render mode postfix `m`) are available under `style.codes`, which returns a `Map` with the open codes as keys and close codes as values. | |
###### Example | |
```js | |
console.log(style.codes.get(36)); | |
//=> 39 | |
``` | |
## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728) | |
`ansi-styles` uses the [`color-convert`](https://github.com/Qix-/color-convert) package to allow for converting between various colors and ANSI escapes, with support for 256 and 16 million colors. | |
To use these, call the associated conversion function with the intended output, for example: | |
```js | |
style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code | |
style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code | |
style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code | |
style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code | |
style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code | |
style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code | |
``` | |
## Related | |
- [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal | |
## Maintainers | |
- [Sindre Sorhus](https://github.com/sindresorhus) | |
- [Josh Junon](https://github.com/qix-) | |
## License | |
MIT | |