1 # ansi-styles [![Build Status](https://travis-ci.org/chalk/ansi-styles.svg?branch=master)](https://travis-ci.org/chalk/ansi-styles)
3 > [ANSI escape codes](http://en.wikipedia.org/wiki/ANSI_escape_code#Colors_and_Styles) for styling strings in the terminal
5 You probably want the higher-level [chalk](https://github.com/chalk/chalk) module for styling your strings.
7 <img src="https://cdn.rawgit.com/chalk/ansi-styles/8261697c95bf34b6c7767e2cbe9941a851d59385/screenshot.svg" width="900">
13 $ npm install ansi-styles
20 const style = require('ansi-styles');
22 console.log(`${style.green.open}Hello world!${style.green.close}`);
25 // Color conversion between 16/256/truecolor
26 // NOTE: If conversion goes to 16 colors or 256 colors, the original color
27 // may be degraded to fit that color palette. This means terminals
28 // that do not support 16 million colors will best-match the
30 console.log(style.bgColor.ansi.hsl(120, 80, 72) + 'Hello world!' + style.bgColor.close);
31 console.log(style.color.ansi256.rgb(199, 20, 250) + 'Hello world!' + style.color.close);
32 console.log(style.color.ansi16m.hex('#ABCDEF') + 'Hello world!' + style.color.close);
37 Each style has an `open` and `close` property.
47 - `italic` *(Not widely supported)*
51 - `strikethrough` *(Not widely supported)*
63 - `gray` ("bright black")
94 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.
103 console.log(style.color.green.open);
106 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.
111 console.log(style.codes.get(36));
116 ## [256 / 16 million (TrueColor) support](https://gist.github.com/XVilka/8346728)
118 `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.
120 To use these, call the associated conversion function with the intended output, for example:
123 style.color.ansi.rgb(100, 200, 15); // RGB to 16 color ansi foreground code
124 style.bgColor.ansi.rgb(100, 200, 15); // RGB to 16 color ansi background code
126 style.color.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
127 style.bgColor.ansi256.hsl(120, 100, 60); // HSL to 256 color ansi foreground code
129 style.color.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color foreground code
130 style.bgColor.ansi16m.hex('#C0FFEE'); // Hex (RGB) to 16 million color background code
136 - [ansi-escapes](https://github.com/sindresorhus/ansi-escapes) - ANSI escape codes for manipulating the terminal
141 - [Sindre Sorhus](https://github.com/sindresorhus)
142 - [Josh Junon](https://github.com/qix-)