Extract colors (named, hex, rgb, rgba, hsl, and hsla) from CSS.
This tool is useful if you are re-skinning a site with a new color scheme and need a starting point for a new stylesheet.
Powers http://www.css-color-extractor.com.
.foo {
color: red;
border:1px solid #ab560f;
font-size:16px;
background-image:linear-gradient(to-bottom, red, blue);
}
.bar {
color:rgba(0,128,255,0.5);
}
.baz {
display: block;
}red
#ab560f
blue
rgba(0, 128, 255, 0.5)
This module looks at the following CSS properties for colors:
colorbackgroundbackground-colorbackground-imageborderborder-topborder-rightborder-bottomborder-leftborder-colorborder-top-colorborder-right-colorborder-bottom-colorborder-left-coloroutlineoutline-colortext-decorationtext-decoration-colortext-shadowbox-shadowfillstrokestop-colorflood-colorlighting-color
npm install css-color-extractor
varextractor=require('css-color-extractor');varoptions={withoutGrey: false,// set to true to remove rules that only have grey colorswithoutMonochrome: false,// set to true to remove rules that only have grey, black, or white colorscolorFormat: null,// transform colors to one of the following formats: hexString, hexaString, rgbString, percentString, hslString, hwbString, or keywordallColors: false,// set to true to get all colors instead of unique colorssort: null,// set to "hue" to sort colors in order of hue, or to "frequency" to sort colors by how many times they appear in the css};// extract from a full stylesheetextractor.fromCss('a { color: red; } p { color: blue; }');// => ['red', 'blue']// extract from a stringextractor.fromString('1px solid blue');// => ['blue']// extract from a declarationextractor.fromDecl({prop: 'color',value: '1px solid blue'});// => ['blue']Install the CLI tool:
npm install -g css-color-extractor-cli
Extract colors as a list to stdout:
css-color-extractor input.css
Extract colors from stdin:
cat input.css | css-color-extractor
Use the --without-grey or --without-monochrome flag(s):
css-color-extractor input.css --without-grey
Use the --color-format option to transform color output format (hexString, hexaString, rgbString, percentString, hslString, hwbString, or keyword):
css-color-extractor input.css --color-format=hslString
Use the --sort option to sort the list of colors (hue or frequency):
css-color-extractor input.css --sort=hue
Use the --inverse option to remove colors from rules:
css-color-extractor input.css output.css --inverse
Extract colors to file:
css-color-extractor input.css output.txt
Extract colors to CSS format (includes original CSS selectors):
css-color-extractor input.css output.css
# or to stdout
css-color-extractor input.css --format=css
.foo {
color: red;
border:1px solid #ab560f;
font-size:16px;
background-image:linear-gradient(to-bottom, red, blue);
}
.bar {
color:rgba(0,128,255,0.5);
}
.baz {
display: block;
}Yields:
.foo {
color: red;
border-color:#ab560f;
background-image:linear-gradient(to-bottom, red, blue);
}
.bar {
color:rgba(0,128,255,0.5);
}Extract colors to JSON format:
css-color-extractor input.css output.json
# or to stdout
css-color-extractor input.css --format=json
.foo {
color: red;
border:1px solid #ab560f;
font-size:16px;
background-image:linear-gradient(to-bottom, red, blue);
}
.bar {
color:rgba(0,128,255,0.5);
}
.baz {
display: block;
}Yields:
["red","#ab560f","blue","rgba(0, 128, 255, 0.5)"]Extract colors to HTML format (page of color swatches):
css-color-extractor input.css output.html
# or to stdout
css-color-extractor input.css --format=html
.foo {
color: yellow;
border:1px solid #ab560f;
font-size:16px;
background-image:linear-gradient(to-bottom, red, blue);
}
.bar {
color:rgba(0,128,255,0.5);
}
.baz {
display: block;
}Yields:
<!DOCTYPE html><html><head><title>Colors</title></head><body><divclass="container"><ulclass="swatches"><liclass="swatch swatch" style="background-color: yellow;">yellow</li><liclass="swatch swatch-dark" style="background-color: #ab560f;">#ab560f</li><liclass="swatch swatch-dark" style="background-color: rgba(0, 128, 255, 0.5);">rgba(0, 128, 255, 0.5)</li><liclass="swatch swatch-dark" style="background-color: blue;">blue</li></ul></div></body></html>Copyright (c) 2015 Rob Sanchez
Licensed under the MIT License.