I create a theme with the materials prompt : ng generate @angular/material:theme-color He generate a file theme 'm3-theme-orange-blue.scss' from primary: #0097A7, secondary: #26C6DA, tertiary: #FFA726, neutral: #F1F8F9 : // Proceed with caution if making changes to this file. @use 'sass:map'; @use '@angular/material' as mat; // Note: Color palettes are generated from primary: #0097A7, secondary: #26C6DA, tertiary: #FFA726, neutral: #F1F8F9 $_palettes: ( primary: ( 0: #000000, 10: #001f24, 20: #00363d, 25: #00424a, 30: #004f58, 35: #005b66, 40: #006874, 50: #008392, 60: #1b9faf, 70: #46bacb, 80: #66d6e7, 90: #97f0ff, 95: #d0f8ff, 98: #edfcff, 99: #f6feff, 100: #ffffff, ), secondary: ( 0: #000000, 10: #001f24, 20: #00363d, 25: #00424a, 30: #004f58, 35: #005b66, 40: #006874, 50: #008392, 60: #009fb1, 70: #06bcd0, 80: #45d8ed, 90: #98f0ff, 95: #d0f8ff, 98: #edfcff, 99: #f6feff, 100: #ffffff, ), tertiary: ( 0: #000000, 10: #2b1700, 20: #472a00, 25: #563400, 30: #663e00, 35: #764800, 40: #865300, 50: #a86900, 60: #cb8000, 70: #ed9912, 80: #ffb961, 90: #ffddb9, 95: #ffeede, 98: #fff8f4, 99: #fffbff, 100: #ffffff, ), neutral: ( 0: #000000, 10: #161d1e, 20: #2b3233, 25: #363d3e, 30: #414849, 35: #4c5455, 40: #586061, 50: #717879, 60: #8b9293, 70: #a5acae, 80: #c1c8c9, 90: #dde4e5, 95: #ebf2f3, 98: #f4fbfc, 99: #f7fdfe, 100: #ffffff, 4: #080f10, 6: #0e1516, 12: #1a2122, 17: #242b2c, 22: #2f3637, 24: #333a3b, 87: #d4dbdc, 92: #e2e9ea, 94: #e8eff0, 96: #eef5f6, ), neutral-variant: ( 0: #000000, 10: #121d1f, 20: #273234, 25: #323d3f, 30: #3d494b, 35: #495457, 40: #556063, 50: #6d797b, 60: #879395, 70: #a1adb0, 80: #bcc9cb, 90: #d8e5e7, 95: #e7f3f5, 98: #effcfe, 99: #f6feff, 100: #ffffff, ), error: ( 0: #000000, 10: #410002, 20: #690005, 25: #7e0007, 30: #93000a, 35: #a80710, 40: #ba1a1a, 50: #de3730, 60: #ff5449, 70: #ff897d, 80: #ffb4ab, 90: #ffdad6, 95: #ffedea, 98: #fff8f7, 99: #fffbff, 100: #ffffff, ), ); $_rest: ( secondary: map.get($_palettes, secondary), neutral: map.get($_palettes, neutral), neutral-variant: map.get($_palettes, neutral-variant), error: map.get($_palettes, error), ); $primary-palette: map.merge(map.get($_palettes, primary), $_rest); $tertiary-palette: map.merge(map.get($_palettes, tertiary), $_rest); $light-theme: mat.define-theme(( color: ( theme-type: light, primary: $primary-palette, tertiary: $tertiary-palette, ), )); $dark-theme: mat.define-theme(( color: ( theme-type: dark, primary: $primary-palette, tertiary: $tertiary-palette, ), )); In my styles.scss file : // Custom Theming for Angular Material // For more information: https://material.angular.io/guide/theming @use '@angular/material' as mat; // Plus imports for other components in your app. @use "styles/m3-theme-orange-blue"; @use "./app/layout/layout-component.theme"; @use "./app/app.component"; @use "./app/layout/menu-item/menu-item-component.theme"; @use "styles/styles-crous"; @use "styles/table-theme"; @use "styles/form-theme"; // Include the common styles for Angular Material. We include this here so that you only // have to load a single css file for Angular Material in your app. // Be sure that you only ever include this mixin once! @include mat.elevation-classes(); @include mat.app-background(); $theme: m3-theme-orange-blue.$light-theme; $compact-theme: mat.define-theme( (density: ( scale: -3, ), typography: ( brand-family: Roboto, regular-weight: 300, ), ) ); // Include theme styles for core and each component used in your app. // Alternatively, you can import and @include the theme mixins for each component // that you are using. :root { @include mat.all-component-themes($theme); @include layout-component.theme($theme); @include app.theme($theme); @include menu-item-component.theme($theme); @include mat.button-color($theme); @include mat.form-field-density($compact-theme); @include mat.form-field-typography($compact-theme); @include mat.table-density($compact-theme); // Fix mat-form-label disparait avec une densité trop faible & { --mat-form-field-filled-label-display: block; --mat-form-field-filled-with-label-container-padding-top: 18px; --mat-form-field-filled-with-label-container-padding-bottom: 0px; // Input - placeholder grey, value black --mdc-filled-text-field-input-text-placeholder-color: grey; --mdc-filled-text-field-input-text-color: black; } } // Comment out the line below if you want to use the pre-defined typography utility classes. // For more information: https://material.angular.io/guide/typography#using-typography-styles-in-your-application. // @include mat.typography-hierarchy($angular-material-theme); // Comment out the line below if you want to use the deprecated `color` inputs. // @include mat.color-variants-backwards-compatibility($angular-material-theme); /* You can add global styles to this file, and also import other style files */ html, body { height: 100%; } body { margin: 0; font-family: Roboto, "Helvetica Neue", sans-serif; } .primary { @include mat.button-color($theme: $theme, $color-variant: 'primary'); } .secondary { @include mat.button-color($theme: $theme, $color-variant: 'secondary'); } .tertiary { @include mat.button-color($theme: $theme, $color-variant: 'tertiary'); } .danger { @include mat.button-color($theme: $theme, $color-variant: 'error'); } // Customize the entire app. Change :root to your selector if you want to scope the styles. :root { @include mat.card-overrides(( elevated-container-shape:20px, title-text-line-height:1.4, )); mat-card-content { padding-top: 10px; background-color: rgba(mat.get-theme-color($theme, primary-container), 0.10); } .mat-mdc-dialog-title { padding: 0; margin-bottom: 5px; } // Header des tableaux @include mat.table-overrides(( header-headline-weight:550, header-headline-size:14px, header-container-height:40px )); mat-select { @include mat.select-overrides(( trigger-text-size:14px, )); } mat-option { min-height: 38px; @include mat.option-overrides(( label-text-size:14px, label-text-line-height:18px, )); } /** * Boutton suppression des champs input des filtres réduits */ table.table-with-filter mat-form-field [matSuffix] { padding: 0; height: 18px; width: 12px; &.material-icons { font-size: 12px; } } table.table-with-filter thead tr:nth-child(2) { background-color: rgba(mat.get-theme-color($theme, primary-container), 0.20); border-top: 2rem solid rgba(mat.get-theme-color($theme, primary-container), 0.90); max-height: 30px; .mat-mdc-header-cell { height: 45px; } th { padding-top: 0 !important; } mat-form-field { .mat-mdc-form-field-subscript-wrapper { line-height: 0; height: 0; } } } } And finally, I want to customize my toolbar with the primary color : @use "@angular/material" as mat; @mixin theme($theme) { .mat-toolbar { background-color: rgba(mat.get-theme-color($theme, primary-container), 0.95); --mdc-protected-button-hover-container-elevation-shadow: rgba(0, 0, 0, 0.25) 0px 7px 7px, rgba(0, 0, 0, 0.12) 0px -8px 8px, rgba(0, 0, 0, 0.12) 0px 4px 6px, rgba(0, 0, 0, 0.17) 0px 7px 7px, rgba(0, 0, 0, 0.09) 0px -3px 5px; } } But the color is not matching my primary color #0097A7 I don't know, what is wrong... 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