material-ui-rc-color-picker/lib/utils/validationColor.js

React Color Picker using Material UI

"use strict";

module.exports = function validationColor(props, propName, componentName) {
  if (props[propName] && !/^#[0-9a-fA-F]{3,6}$/.test(props[propName])) {
    return new Error(componentName + ".props." + propName + " Validation failed!");
  }
  return null;
};