[theme] Improve default primary, secondary and error theme pale…

…tte (#26555)

docs/src/modules/components/MarkdownElement.js

@@ -2,7 +2,7 @@ import * as React from 'react';
 import PropTypes from 'prop-types';
 import clsx from 'clsx';
 import { makeStyles } from '@material-ui/styles';
-import { createTheme } from '@material-ui/core/styles';
+import { createTheme, alpha, darken } from '@material-ui/core/styles';
 
 const styles = (theme) => ({
   root: {
@@ -36,7 +36,9 @@ const styles = (theme) => ({
       padding: '0 3px',
       color: theme.palette.text.primary,
       backgroundColor:
-        theme.palette.mode === 'light' ? 'rgba(255, 229, 100, 0.2)' : 'rgba(255, 229, 100, 0.2)',
+        theme.palette.mode === 'light'
+          ? 'rgba(255, 229, 100, 0.2)'
+          : alpha(theme.palette.primary.main, 0.08),
       fontSize: '.85em',
       borderRadius: 2,
     },
@@ -179,6 +181,12 @@ const styles = (theme) => ({
         textDecoration: 'underline',
       },
     },
+    '& a code': {
+      color:
+        theme.palette.mode === 'dark'
+          ? theme.palette.primary.main
+          : darken(theme.palette.primary.main, 0.04),
+    },
     '& img, video': {
       maxWidth: '100%',
     },

packages/material-ui/src/FormLabel/FormLabel.test.js

@@ -4,6 +4,8 @@ import { expect } from 'chai';
 import { createMount, describeConformanceV5, act, createClientRender } from 'test/utils';
 import FormLabel, { formLabelClasses as classes } from '@material-ui/core/FormLabel';
 import FormControl, { useFormControl } from '@material-ui/core/FormControl';
+import { hexToRgb } from '@material-ui/core/styles';
+import defaultTheme from '../styles/defaultTheme';
 
 describe('<FormLabel />', () => {
   const render = createClientRender();
@@ -165,15 +167,19 @@ describe('<FormLabel />', () => {
         <FormLabel data-testid="FormLabel" color="secondary" focused />,
       );
       expect(container.querySelector(`.${classes.colorSecondary}`)).to.have.class(classes.focused);
-      expect(getByTestId('FormLabel')).toHaveComputedStyle({ color: 'rgb(245, 0, 87)' });
+      expect(getByTestId('FormLabel')).toHaveComputedStyle({
+        color: hexToRgb(defaultTheme.palette.secondary.main),
+      });
     });
 
     it('should have the error class and style, even when focused', () => {
       const { container, getByTestId } = render(
         <FormLabel data-testid="FormLabel" color="secondary" focused error />,
       );
       expect(container.querySelector(`.${classes.colorSecondary}`)).to.have.class(classes.error);
-      expect(getByTestId('FormLabel')).toHaveComputedStyle({ color: 'rgb(244, 67, 54)' });
+      expect(getByTestId('FormLabel')).toHaveComputedStyle({
+        color: hexToRgb(defaultTheme.palette.error.main),
+      });
     });
   });
 });

packages/material-ui/src/styles/createPalette.js

@@ -2,8 +2,8 @@ import { deepmerge } from '@material-ui/utils';
 import MuiError from '@material-ui/utils/macros/MuiError.macro';
 import common from '../colors/common';
 import grey from '../colors/grey';
-import indigo from '../colors/indigo';
-import pink from '../colors/pink';
+import purple from '../colors/purple';
+import cyan from '../colors/cyan';
 import red from '../colors/red';
 import orange from '../colors/orange';
 import blue from '../colors/blue';
@@ -91,32 +91,62 @@ function addLightOrDark(intent, direction, shade, tonalOffset) {
   }
 }
 
-export default function createPalette(palette) {
-  const {
-    primary = {
-      light: indigo[300],
-      main: indigo[500],
-      dark: indigo[700],
-    },
-    secondary = {
-      light: pink.A200,
-      main: pink.A400,
-      dark: pink.A700,
-    },
-    error = {
-      light: red[300],
+function getDefaultPrimary(mode = 'light') {
+  if (mode === 'dark') {
+    return {
+      main: blue[200],
+      light: blue[50],
+      dark: blue[400],
+    };
+  }
+  return {
+    main: blue[700],
+    light: blue[400],
+    dark: blue[800],
+  };
+}
+
+function getDefaultSecondary(mode = 'light') {
+  if (mode === 'dark') {
+    return {
+      main: purple[200],
+      light: purple[50],
+      dark: purple[400],
+    };
+  }
+  return {
+    main: purple[500],
+    light: purple[300],
+    dark: purple[700],
+  };
+}
+
+function getDefaultError(mode = 'light') {
+  if (mode === 'dark') {
+    return {
       main: red[500],
+      light: red[300],
       dark: red[700],
-    },
+    };
+  }
+  return {
+    main: red[700],
+    light: red[400],
+    dark: red[800],
+  };
+}
+
+export default function createPalette(palette) {
+  const {
     warning = {
       light: orange[300],
       main: orange[500],
       dark: orange[700],
     },
     info = {
-      light: blue[300],
-      main: blue[500],
-      dark: blue[700],
+      light: cyan[300],
+      main: cyan[500],
+      dark: cyan[700],
     },
     success = {
       light: green[300],
@@ -129,6 +159,10 @@ export default function createPalette(palette) {
     ...other
   } = palette;
 
+  const primary = palette.primary || getDefaultPrimary(mode);
+  const secondary = palette.secondary || getDefaultSecondary(mode);
+  const error = palette.error || getDefaultError(mode);
+
   // Use the same logic as
   // Bootstrap: https://github.com/twbs/bootstrap/blob/1d6e3710dd447de1a200f29e8fa521f8a0908f70/scss/_functions.scss#L59
   // and material-components-web https://github.com/material-components/material-components-web/blob/ac46b8863c4dab9fc22c4c662dc6bd1b65dd652f/packages/mdc-theme/_functions.scss#L54

packages/material-ui/src/styles/createPalette.test.js

@@ -1,5 +1,5 @@
 import { expect } from 'chai';
-import { deepOrange, indigo, pink } from '../colors';
+import { deepOrange, blue, purple, indigo } from '../colors';
 import { darken, lighten } from './colorManipulator';
 import createPalette, { dark, light } from './createPalette';
 
@@ -85,11 +85,11 @@ describe('createPalette()', () => {
 
   it('should create a dark palette', () => {
     const palette = createPalette({ mode: 'dark' });
-    expect(palette.primary.main, 'should use indigo as the default primary color').to.equal(
-      indigo[500],
+    expect(palette.primary.main, 'should use blue as the default primary color').to.equal(
+      blue[200],
     );
-    expect(palette.secondary.main, 'should use pink as the default secondary color').to.equal(
-      pink.A400,
+    expect(palette.secondary.main, 'should use purple as the default secondary color').to.equal(
+      purple[200],
     );
     expect(palette.text, 'should use dark theme text').to.equal(dark.text);
   });
@@ -176,8 +176,9 @@ describe('createPalette()', () => {
           contrastThreshold: 0,
         }));
       }).toErrorDev([
-        'falls below the WCAG recommended absolute minimum contrast ratio of 3:1',
-        'falls below the WCAG recommended absolute minimum contrast ratio of 3:1',
+        'falls below the WCAG recommended absolute minimum contrast ratio of 3:1', // warning palette
+        'falls below the WCAG recommended absolute minimum contrast ratio of 3:1', // info palette
+        'falls below the WCAG recommended absolute minimum contrast ratio of 3:1', // success palette
       ]);
 
       expect(() => {