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# ansi-styles [](https://travis-ci.org/chalk/ansi-styles) |
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> [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles) for styling strings in the terminal |
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You probably want the higher-level [chalk](https://github.com/chalk/chalk) module for styling your strings. |
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<img src="https://cdn.rawgit.com/chalk/ansi-styles/8261697c95bf34b6c7767e2cbe9941a851d59385/screenshot.svg" width="900"> |
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## Install |
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``` |
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$ npm install ansi-styles |
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``` |
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## Usage |
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```js |
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const style = require('ansi-styles'); |
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console.log(`${style.green.open}Hello world!${style.green.close}`); |
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// Color conversion between 16/256/truecolor |
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// NOTE: If conversion goes to 16 colors or 256 colors, the original color |
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// may be degraded to fit that color palette. This means terminals |
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// that do not support 16 million colors will best-match the |
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// original color. |
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console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close); |
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console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close); |
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console.log(style.color.ansi16m.hex('#ABCDEF') + 'Hello world!' + style.color.close); |
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``` |
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## API |
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Each style has an `open` and `close` property. |
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## Styles |
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### Modifiers |
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- `reset` |
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- `bold` |
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- `dim` |
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- `italic` *(Not widely supported)* |
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- `underline` |
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- `inverse` |
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- `hidden` |
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- `strikethrough` *(Not widely supported)* |
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### Colors |
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- `black` |
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- `red` |
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- `green` |
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- `yellow` |
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- `blue` |
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- `magenta` |
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- `cyan` |
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- `white` |
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- `gray` ("bright black") |
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- `redBright` |
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- `greenBright` |
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- `yellowBright` |
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- `blueBright` |
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- `magentaBright` |
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- `cyanBright` |
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- `whiteBright` |
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### Background colors |
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- `bgBlack` |
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- `bgRed` |
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- `bgGreen` |
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- `bgYellow` |
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- `bgBlue` |
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- `bgMagenta` |
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- `bgCyan` |
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- `bgWhite` |
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- `bgBlackBright` |
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- `bgRedBright` |
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- `bgGreenBright` |
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- `bgYellowBright` |
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- `bgBlueBright` |
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- `bgMagentaBright` |
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- `bgCyanBright` |
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- `bgWhiteBright` |
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## Advanced usage |
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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. |
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- `style.modifier` |
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- `style.color` |
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- `style.bgColor` |
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###### Example |
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```js |
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console.log(style.color.green.open); |
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``` |
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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. |
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###### Example |
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```js |
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console.log(style.codes.get(36)); |
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//=> 39 |
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``` |
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## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728) |
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`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. |
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To use these, call the associated conversion function with the intended output, for example: |
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```js |
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style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code |
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style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code |
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style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code |
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style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code |
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style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code |
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style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code |
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``` |
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## Related |
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- [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal |
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## Maintainers |
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- [Sindre Sorhus](https://github.com/sindresorhus) |
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- [Josh Junon](https://github.com/qix-) |
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## License |
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MIT |
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