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postcss-color-functional-notation
Advanced tools
The postcss-color-functional-notation package is a PostCSS plugin that transforms CSS color functions like `rgb()`, `rgba()`, `hsl()`, `hsla()`, `hwb()`, and `lab()` into a more modern and consistent functional notation. This helps in maintaining a consistent color format across your stylesheets and ensures compatibility with modern CSS standards.
Transforming RGB/RGBA Notation
This feature transforms the traditional `rgb()` and `rgba()` functions into the modern space-separated notation. This makes the color definitions more consistent and easier to read.
/* Input CSS */
body {
color: rgb(255, 0, 0);
background-color: rgba(0, 255, 0, 0.5);
}
/* Output CSS */
body {
color: rgb(255 0 0);
background-color: rgb(0 255 0 / 0.5);
}
Transforming HSL/HSLA Notation
This feature converts the `hsl()` and `hsla()` functions into the modern space-separated notation, making the color definitions more consistent and easier to read.
/* Input CSS */
body {
color: hsl(120, 100%, 50%);
background-color: hsla(240, 100%, 50%, 0.5);
}
/* Output CSS */
body {
color: hsl(120 100% 50%);
background-color: hsl(240 100% 50% / 0.5);
}
Transforming HWB Notation
This feature transforms the `hwb()` function into the modern space-separated notation, ensuring consistency and readability in color definitions.
/* Input CSS */
body {
color: hwb(120, 0%, 0%);
}
/* Output CSS */
body {
color: hwb(120 0% 0%);
}
Transforming LAB Notation
This feature converts the `lab()` function into the modern space-separated notation, making the color definitions more consistent and easier to read.
/* Input CSS */
body {
color: lab(50, 0, 0);
}
/* Output CSS */
body {
color: lab(50 0 0);
}
postcss-preset-env allows you to use future CSS features today by converting modern CSS into something most browsers can understand. It includes a variety of plugins, including one for transforming color functions, making it a more comprehensive solution compared to postcss-color-functional-notation.
postcss-color-mod-function is a PostCSS plugin that transforms the `color-mod()` function, which allows for color manipulation. While it focuses on color modification rather than notation transformation, it provides advanced color manipulation capabilities that complement the features of postcss-color-functional-notation.
postcss-color-rebeccapurple is a PostCSS plugin that transforms the `rebeccapurple` color keyword to its equivalent hex value. While it has a more specific use case, it can be used alongside postcss-color-functional-notation for comprehensive color transformations.
PostCSS Color Functional Notation lets you use space and slash separated color notation in CSS, following the CSS Color specification.
:root {
--firebrick: rgb(178 34 34);
--firebrick-a50: rgb(70% 13.5% 13.5% / 50%);
--firebrick-hsl: hsla(0 68% 42%);
--firebrick-hsl-a50: hsl(0 68% 42% / 50%);
}
/* becomes */
:root {
--firebrick: rgb(178, 34, 34);
--firebrick-a50: rgba(178, 34, 34, .5);
--firebrick-hsl: hsl(0, 68%, 42%);
--firebrick-hsl-a50: hsla(0, 68%, 42%, .5);
}
Add PostCSS Color Functional Notation to your project:
npm install postcss-color-functional-notation --save-dev
Use PostCSS Color Functional Notation to process your CSS:
const postcssColorFunctionalNotation = require('postcss-color-functional-notation');
postcssColorFunctionalNotation.process(YOUR_CSS /*, processOptions, pluginOptions */);
Or use it as a PostCSS plugin:
const postcss = require('postcss');
const postcssColorFunctionalNotation = require('postcss-color-functional-notation');
postcss([
postcssColorFunctionalNotation(/* pluginOptions */)
]).process(YOUR_CSS /*, processOptions */);
PostCSS Color Functional Notation runs in all Node environments, with special instructions for:
Node | PostCSS CLI | Webpack | Create React App | Gulp | Grunt |
---|
The preserve
option determines whether the original functional color notation
is preserved. By default, it is not preserved.
postcssImageSetFunction({ preserve: true })
:root {
--firebrick: rgb(178 34 34);
--firebrick-a50: rgb(70% 13.5% 13.5% / 50%);
--firebrick-hsl: hsla(0 68% 42%);
--firebrick-hsl-a50: hsl(0 68% 42% / 50%);
}
/* becomes */
:root {
--firebrick: rgb(178, 34, 34);
--firebrick: rgb(178 34 34);
--firebrick-a50: rgba(178, 34, 34, .5);
--firebrick-a50: rgb(70% 13.5% 13.5% / 50%);
--firebrick-hsl: hsl(0, 68%, 42%);
--firebrick-hsl: hsla(0 68% 42%);
--firebrick-hsl-a50: hsla(0, 68%, 42%, .5);
--firebrick-hsl-a50: hsl(0 68% 42% / 50%);
}
FAQs
Use space and slash separated color notation in CSS
We found that postcss-color-functional-notation demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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