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material_color_utilities

0.13.1

Algorithms and utilities that power the Material Design 3 color system, including choosing theme colors from images and creating tones of colors; all in a new color space.

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material_color_utilities

pub package

Algorithms and utilities that power the Material Design 3 color system, including choosing theme colors from images and creating tones of colors; all in a new color space.

This is a low-level package. For developers looking to adopt Material 3 features such as dynamic color and color harmonization in their apps, please see the dynamic_color package.

Getting started

dart pub add material_color_utilities or flutter pub add material_color_utilities

Usage

import 'package:material_color_utilities/material_color_utilities.dart';

For more information, see the main README.

Contributing

This repo is not accepting external contributions, but feature requests and bug reports are welcome on GitHub.

Changelog

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

0.13.1 - 2026-08-10

Changed

  • Use MathUtils.sanitizeDegreesDouble for hue value calculation in Cam16.

Fixed

  • Fix documentation link for deprecated Scheme class.

0.13.0 - 2025-05-20

Changed

  • Make all MaterialDynamicColors fields final.
  • Require Dart 3.5.
  • Optimize ARGB and HCT color conversions in DynamicScheme constructors.
  • Unify errorPalette parameter handling across DynamicScheme constructors.
  • Make Scheme internal implementation details private.

Deprecated

  • Deprecate legacy CorePalette class in favor of CorePalettes.

0.12.0 - 2024-06-06

Changed

  • Update MaterialDynamicColors to use the expressive on-colors spec.

0.11.2 - 2024-04-30

Changed

  • Update TonalPalette to use new key color algorithm.

0.11.1 - 2024-03-11

Fixed

  • Fix Apache license.

0.11.0 - 2024-02-20

Changed

  • Update TonalPalette.fromList so that it provides colors at any tone, not only at commonTones.

0.10.0 - 2023-11-27

Changed

  • Update MaterialDynamicColors to new Contrast Surfaces spec.

0.9.0 - 2023-11-06

Added

  • Add getters for DynamicScheme.

Changed

  • Move DynamicScheme from scheme/ to dynamiccolor/.

0.8.0 - 2023-06-22

Added

  • Add fruit salad color scheme.
  • Add rainbow color scheme.

0.7.0 - 2023-06-13

Changed

  • Update DynamicColor to conform to the new contrast requirements.

    • Modify API for DynamicColor.

0.6.0 - 2023-05-31

Added

  • Add key color to tonal palette.

  • Add key colors to the Material dynamic colors:

    • primaryPaletteKeyColor
    • secondaryPaletteKeyColor
    • tertiaryPaletteKeyColor
    • neutralPaletteKeyColor
    • neutralVariantPaletteKeyColor

Changed

  • Scheme updates to align with recent Android Sys UI changes:
    • SchemeExpressive:
      • Primary hue + 240 from 120
      • Neutral hue + 15
      • Neutral variant hue + 15
    • SchemeTonalSpot:
      • Primary chroma = 36 from 40
    • SchemeVibrant:
      • Neutral chroma = 10 from 8

Fixed

  • Fix outline when in dark mode to be tone 60.

0.5.0 - 2023-05-02

Removed

  • Remove inverseOnPrimary, an unfounded dynamic color.

0.4.0 - 2023-04-28

Added

  • Add label and description to each Variant.
  • Add xFixed Material dynamic colors.

Changed

  • Update monochrome scheme to new spec.

Fixed

  • Fix inverseSurface tone value.

0.3.0 - 2023-03-10

Added

  • Add 4 new components:

    • contrast: Use Contrast for utility methods.

    • dislike: Use DislikeAnalyzer for checking and fixing universally disliked colors.

    • dynamiccolor: Use DynamicColor and MaterialDynamicColors for colors from a DynamicScheme, that adjust based on UI state (dark theme, style, preferences, contrast requirements, etc.)

    • temperature: Use TemperatureCache for analogous & complementary colors.

  • scheme: Add DynamicScheme and its subclasses:

    • SchemeExpressive
    • SchemeMonochrome
    • SchemeNeutral
    • SchemeTonalSpot
    • SchemeVibrant
    • SchemeFidelity
    • SchemeContent

  • hct: Add inViewingConditions to hct, for color relativity.

  • utilities: Add lstarFromY method, utility which is the inverse of yFromLstar.

Changed

  • Export all public API in material_color_utilities.dart.
  • Bump minimum Flutter SDK version to 2.17.0.

Fixed

  • Fix missing hashCode override for Hct.
  • Fix TonalPalette equality operator when different constructors are used (#56).

0.2.0 - 2022-08-05

Added

  • Add support for content color.
  • Add outlineVariant and scrim colors.

Changed

  • Rename CamSolver to HctSolver.

Fixed

  • Correct repository in pubspec.

0.1.5 - 2022-04-25

Added

  • Introduce CamSolver, a fast solver for the HCT equation. Highly performant, but a small breaking change.
  • Add explanation and link to dynamic_color packages.
  • Add operator == and toString overrides to Hct.

Changed

  • Improve documentation for color_utils.dart.
  • Rename HctColor to Hct.

Fixed

  • Fix README import.

0.1.4 - 2022-01-21

Added

  • Allow creation of Scheme from a CorePalette with lightFromCorePalette and darkFromCorePalette

0.1.3 - 2021-12-10

Added

  • Export Scheme.

0.1.2 - 2021-12-02

Changed

  • Update Scheme tonal values.
  • Move matcher to pubspec's dev_dependencies.

0.1.1 - 2021-10-28

Changed

  • Update pubspec description.

Fixed

  • Fix matcher version incompatibility with Flutter stable.

0.1.0 - 2021-10-28

Added

  • Create library.

Installing

export PUB_HOSTED_URL=https://pub.mirror.p-hatan.com
flutter pub add 'material_color_utilities:0.13.1'
pubspec.yaml
# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: material_color_utilities
description: Algorithms and utilities that power the Material Design 3 color system, including choosing theme colors from images and creating tones of colors; all in a new color space.
version: 0.13.1
repository: https://github.com/material-foundation/material-color-utilities/tree/main/dart
issue_tracker: https://github.com/material-foundation/material-color-utilities/issues
screenshots:
  - description: "App showing the Material You color system."
    path: screenshots/material_you_1.png
  - description: "App showing the Material You color system."
    path: screenshots/material_you_2.png
  - description: "App showing the Material You color system."
    path: screenshots/material_you_3.png
  - description: "App showing the Material You color system."
    path: screenshots/material_you_4.png

environment:
  sdk: ^3.5.0

dependencies:
  collection: ^1.15.0 # used by tonal_palette.dart

dev_dependencies:
  dart_flutter_team_lints: ^3.0.0
  matcher: ^0.12.0 # used by color_matcher.dart
  test: ^1.16.0

Version history

VersionPublishedArchiveSHA-256
0.1.0Cached · Upstream SHA-256 matchedDownloadeb205bd0…3b5af5
0.1.1Cached · Upstream SHA-256 matchedDownloada70544ba…bd21b6
0.1.2Cached · Upstream SHA-256 matchedDownload57f0c599…58dd58
0.1.3Cached · Upstream SHA-256 matchedDownload08a930be…45ac1b
0.1.4Cached · Upstream SHA-256 matchedDownloadc439ea29…bf160f
0.1.5Cached · Upstream SHA-256 matchedDownload3e44388c…45d98b
0.2.0Cached · Upstream SHA-256 matchedDownloadd92141dc…8cf724
0.3.0Cached · Upstream SHA-256 matchedDownload586678f2…de9bdb
0.4.0Cached · Upstream SHA-256 matchedDownload28caca2b…4c8ae8
0.5.0Cached · Upstream SHA-256 matchedDownload9528f2f2…203d41
0.6.0Cached · Upstream SHA-256 matchedDownload8c706610…3f2466
0.7.0Cached · Upstream SHA-256 matchedDownloadfe275c8e…2e4510
0.8.0Cached · Upstream SHA-256 matchedDownload0e0a0200…a74e5a
0.9.0Cached · Upstream SHA-256 matchedDownload8289611b…ef804d
0.10.0Cached · Upstream SHA-256 matchedDownloadeebdbb09…962861
0.11.0Cached · Upstream SHA-256 matchedDownloadb0292aef…8d6bff
0.11.1Cached · Upstream SHA-256 matchedDownloadf7142bb1…56bdec
0.12.0Cached · Upstream SHA-256 matchedDownloadafaac3eb…d9aa79
0.13.0Cached · Upstream SHA-256 matchedDownload9c337007…e4c48b
0.13.1Cached · Upstream SHA-256 matchedDownloadcda64b65…7133d0

Dependencies

collection "^1.15.0"