Tokens, mixins, and other Sass utilities for Esri's Calcite Design System

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Calcite Base
The calcite-base repository holds the variables and mixins used in Calcite Web. This includes resources regarding:
  • motion (easing functions, transitions)
  • type (font stacks, sizing, spacing mixins)
  • reponsive design (breakpoints, respond-to mixins)
  • utilities (clearfix, show/hide, etc)
  • shadow (defined levels of depth)
  • spacing (standardized vertical/horizontal spacing units)


If you use npm, installation is as easy as:
npm install @esri/calcite-base

You can also download the latest release manually.


In a Sass project, simply import calcite-base into your project and use the variables/mixins:
@import "./node_modules/@esri/calcite-base/dist/_index.scss";

.myClass {
  @include font-size(-1);

If you only require certain mixins, you can import each section directly as well:
@import "./node_modules/@esri/calcite-base/dist/_type.scss";

.myClass {
  @include avenir-light();
  @include font-size(-1);
  @include leading(2);
  @include tracking(166);
  @include word-spacing(200);

Custom Properties

If you are using PostCSS (or standard CSS) there are a series of files which declare the variables utilizing custom properties (CSS Variables). You can use these along with something like the postcss-custom-properties library to utilize the base colors, styles, etc in your postcss project:
@import "./node_modules/@esri/calcite-base/dist/variables.css";

.myClass {
  box-shadow: var(--shadow-1);


If you need some of these values and are using a CSS-in-JS approach, you can import them from the JavaScript file using ES6 modules:
import {avenirLight} from "@esri/calcite-base";
console.log(avenirLight); // '"Avenir Next", "Avenir", "Helvetica Neue", sans-serif'

Note when using partial imports like this, the hyphenated variables become camel case.


COPYRIGHT © 2019 Esri
All rights reserved under the copyright laws of the United States and applicable international laws, treaties, and conventions.
This material is licensed for use under the Esri Master License Agreement (MLA), and is bound by the terms of that agreement. You may redistribute and use this code without modification, provided you adhere to the terms of the MLA and include this copyright notice.
See use restrictions at http://www.esri.com/legal/pdfs/mlae204e300/english
For additional information, contact: Environmental Systems Research Institute, Inc. Attn: Contracts and Legal Services Department 380 New York Street Redlands, California, USA 92373 USA
email: contracts@esri.com


Please read the contribute document.