@activelylearn/material-ui/packages/material-ui/src/colors/grey.js

Material-UI's workspace package

const grey = {
  50: '#fafafa',
  100: '#f5f5f5',
  200: '#eeeeee',
  300: '#e0e0e0',
  400: '#bdbdbd',
  500: '#9e9e9e',
  600: '#757575',
  700: '#616161',
  800: '#424242',
  900: '#212121',
  A100: '#d5d5d5',
  A200: '#aaaaaa',
  A400: '#303030',
  A700: '#616161',
};

export default grey;