Material UI のThemeをカスタマイズ

The world's most popular React UI framework - Material-UI のカラーを細かくカスタマイズする方法。

Color - Material-UI によると、カスタマイズ方法はこう書かれてます

import { createMuiTheme } from '@material-ui/core/styles';

const theme = createMuiTheme({
palette: {
primary: {
light: '#757ce8',
main: '#3f50b5',
dark: '#002884',
contrastText: '#fff',
secondary: {
light: '#ff7961',
main: '#f44336',
dark: '#ba000d',
contrastText: '#000',

これでも十分なんですが、デザイナーがもっと薄い色を使いたい場合などがあり、 main,light,darkでは足りない場合もあります。


Material UIテーマをカスタマイズしたい時は以下の書き方で上書き、カラー追加しました。


import { createMuiTheme } from '@material-ui/core/styles'

// Material UIのテーマ上書き
export const theme = createMuiTheme({
// カラーパレット追加
palette: {
type: 'light',
primary: {
'50': 'e8eaf6',
'100': 'c5cbe9',
'200': '9fa8da',
'300': '7985cb',
'400': '5c6bc0',
'500': '3f51b5',
'600': '394aae',
'700': '3140a5',
'800': '29379d',
'900': '1b278d',
'A100': 'c6cbff',
'A200': '939dff',
'A400': '606eff',
'A700': '4757ff',
'contrastDefaultColor': 'light',
secondary: {
'50': 'f9e0e0',
'100': 'f0b3b3',
'200': 'e68080',
'300': 'db4d4d',
'400': 'd42626',
'500': 'cc0000',
'600': 'c70000',
'700': 'c00000',
'800': 'b90000',
'900': 'ad0000',
'A100': 'ffd7d7',
'A200': 'ffa4a4',
'A400': 'ff7171',
'A700': 'ff5858',
'contrastDefaultColor': 'light',
// レスポンシブのブレイクポイント
'breakpoints': {
'keys': [
'values': {
'xs': 360, // スマホ用
'sm': 768, // タブレット用
'md': 992, // PC用
'lg': 1400,
'xl': 1800,
typography: {
useNextVariants: true, // Migration to typography v2
htmlFontSize: 10,
fontSize: 13,
// classのstyleを上書き
overrides: {
MuiButton: {
root: {
// ボタン内アルファベット文字を大文字変換しない
textTransform: 'none',

export default theme;

ちなみにカラーコードの生成は Material Design Theme & Palette Color Generator が楽です。

Output Formatsを MATERIAL UI(REACT)から出力してます。




import { theme } from 'styles/theme'

import styled from "styled-components";

const Root = styled.button`


(デザイナーがMaterial UIの色数縛りでデザインするべき議論は置いておいて)


参考までにデフォルトを出力してみました( console.log(theme) の出力結果の見た目を調整しただけ)

breakpoints: {

between: ƒ between(start,
arguments: (...)
caller: (...)
length: 2
name: "between"
prototype: { constructor: ƒ}
__proto__: ƒ ()
[[FunctionLocation]]: createBreakpoints.js: 54
[[Scopes]]: Scopes[3]
down: ƒ down(key)
keys: (5) [
only: ƒ only(key)
up: ƒ up(key)
values: {
xs: 0,
sm: 600,
md: 960,
lg: 1280,
xl: 1920
width: ƒ width(key)
__proto__: Object
direction: "ltr"
mixins: {gutters: ƒ, toolbar: {…}}
overrides: {}
palette: {
action: {
active: "rgba(0,0,0,0.54)",
hover: "rgba(0,0,0,0.08)",
hoverOpacity: 0.08,
selected: "rgba(0,0,0, 0.14)",
disabled: "rgba(0,0,0, 0.26)",
augmentColor: ƒ augmentColor(color)
background: {paper: "#fff",
default: "#fafafa"}
common: {
black: "#000",
white: "#fff"
contrastThreshold: 3
divider: "rgba(0,0,0, 0.12)"
error: {
light: "#e57373",
main: "#f44336",
dark: "#d32f2f",
contrastText: "#fff"
getContrastText: ƒ getContrastText(background)
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"}
primary: {
light: "#7986cb",
main: "#3f51b5",
dark: "#303f9f",
contrastText: "#fff"
secondary: {
light: "#ff4081",
main: "#f50057",
dark: "#c51162",
contrastText: "#fff"
text: {
primary: "rgba(0,0,0,0.87)",
secondary: "rgba(0,0,0,
disabled: "rgba(0,0,0,0.38)",
hint: "rgba(0,0,0,0.38)"
tonalOffset: 0.2
type: "light"
__proto__: Object
props: {}
shadows: (25) [
"0px 1px 3px 0px rgba(0,0,0,0.2),0px 1px 1px 0px rgba(0,0,0,0.14),0px 2px 1px -1px rgba(0,0,0,0.12)",
"0px 1px 5px 0px rgba(0,0,0,0.2),0px 2px 2px 0px rgba(0,0,0,0.14),0px 3px 1px -2px rgba(0,0,0,0.12)",
"0px 1px 8px 0px rgba(0,0,0,0.2),0px 3px 4px 0px rgba(0,0,0,0.14),0px 3px 3px -2px rgba(0,0,0,0.12)",
"0px 2px 4px -1px rgba(0,0,0,0.2),0px 4px 5px 0px rgba(0,0,0,0.14),0px 1px 10px 0px rgba(0,0,0,0.12)",
"0px 3px 5px -1px rgba(0,0,0,0.2),0px 5px 8px 0px rgba(0,0,0,0.14),0px 1px 14px 0px rgba(0,0,0,0.12)",
"0px 3px 5px -1px rgba(0,0,0,0.2),0px 6px 10px 0px rgba(0,0,0,0.14),0px 1px 18px 0px rgba(0,0,0,0.12)",
"0px 4px 5px -2px rgba(0,0,0,0.2),0px 7px 10px 1px rgba(0,0,0,0.14),0px 2px 16px 1px rgba(0,0,0,0.12)",
"0px 5px 5px -3px rgba(0,0,0,0.2),0px 8px 10px 1px rgba(0,0,0,0.14),0px 3px 14px 2px rgba(0,0,0,0.12)",
"0px 5px 6px -3px rgba(0,0,0,0.2),0px 9px 12px 1px rgba(0,0,0,0.14),0px 3px 16px 2px rgba(0,0,0,0.12)",
"0px 6px 6px -3px rgba(0,0,0,0.2),0px 10px 14px 1px…gba(0,0,0,0.14),0px 4px 18px 3px rgba(0,0,0,0.12)",
"0px 6px 7px -4px rgba(0,0,0,0.2),0px 11px 15px 1px…gba(0,0,0,0.14),0px 4px 20px 3px rgba(0,0,0,0.12)",
"0px 7px 8px -4px rgba(0,0,0,0.2),0px 12px 17px 2px…gba(0,0,0,0.14),0px 5px 22px 4px rgba(0,0,0,0.12)",
"0px 7px 8px -4px rgba(0,0,0,0.2),0px 13px 19px 2px…gba(0,0,0,0.14),0px 5px 24px 4px rgba(0,0,0,0.12)",
"0px 7px 9px -4px rgba(0,0,0,0.2),0px 14px 21px 2px…gba(0,0,0,0.14),0px 5px 26px 4px rgba(0,0,0,0.12)",
"0px 8px 9px -5px rgba(0,0,0,0.2),0px 15px 22px 2px…gba(0,0,0,0.14),0px 6px 28px 5px rgba(0,0,0,0.12)",
"0px 8px 10px -5px rgba(0,0,0,0.2),0px 16px 24px 2p…gba(0,0,0,0.14),0px 6px 30px 5px rgba(0,0,0,0.12)",
"0px 8px 11px -5px rgba(0,0,0,0.2),0px 17px 26px 2p…gba(0,0,0,0.14),0px 6px 32px 5px rgba(0,0,0,0.12)",
"0px 9px 11px -5px rgba(0,0,0,0.2),0px 18px 28px 2p…gba(0,0,0,0.14),0px 7px 34px 6px rgba(0,0,0,0.12)",
"0px 9px 12px -6px rgba(0,0,0,0.2),0px 19px 29px 2p…gba(0,0,0,0.14),0px 7px 36px 6px rgba(0,0,0,0.12)",
"0px 10px 13px -6px rgba(0,0,0,0.2),0px 20px 31px 3…gba(0,0,0,0.14),0px 8px 38px 7px rgba(0,0,0,0.12)",
"0px 10px 13px -6px rgba(0,0,0,0.2),0px 21px 33px 3…gba(0,0,0,0.14),0px 8px 40px 7px rgba(0,0,0,0.12)",
"0px 10px 14px -6px rgba(0,0,0,0.2),0px 22px 35px 3…gba(0,0,0,0.14),0px 8px 42px 7px rgba(0,0,0,0.12)",
"0px 11px 14px -7px rgba(0,0,0,0.2),0px 23px 36px 3…gba(0,0,0,0.14),0px 9px 44px 8px rgba(0,0,0,0.12)",
"0px 11px 15px -7px rgba(0,0,0,0.2),0px 24px 38px 3…gba(0,0,0,0.14),0px 9px 46px 8px rgba(0,0,0,0.12)"
shape: {borderRadius: 4}
spacing: {unit: 8}
transitions: {
easing: {…},
duration: {…},
create: ƒ,
getAutoHeightDuration: ƒ
typography: {
pxToRem: ƒ,
round: ƒ,
fontFamily: ""Roboto",
fontSize: 14,
fontWeightLight: 300,
zIndex: {
mobileStepper: 1000,
appBar: 1100,
drawer: 1200,
modal: 1300,
snackbar: 1400,

__proto__: Object


Material-UI v1導入まとめ - Qiita