$ sudo npm install postcss-color-function
$ sudo npm install -g postcss-color-function

If want to update the postcss-color-function package execute the command as below,

$ sudo npm update postcss-color-function

Update package globally,

$ npm install -g postcss-color-function

Git clone:

$ sudo  git clone https://github.com/rektide/postcss-color-function.git

$ sudo  npm install -g ./postcss-color-function

postcss-color-function@4.0.1 /usr/lib/node_modules/postcss-color-function

How to remove postcss-color-function package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall postcss-color-function

Basic Information of postcss-color-function NPM Package: