postcss-google-color PostCSS plugin for easily using CSS variables. Installation npm install postcss-var Example // todo Usage Using Gulp. var gulp = require('gulp'), postcss = require('gulp-postcss'), cssvar = require('postcss-var'); gulp.task('css', function() { gulp.src('path/to/dev-css'). .pipe(postcss({ // other postcss plugins cssvar // possible options // cssvar({ // varibles: {} // }) })) .pipe(gulp.dest('path/to/build/css'));}); // rest of the gulp file