Android Text Colors according to Material Design Pattern

text_colors.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <!-- Dark Text Color for Light Background -->
    <color name="textDarkPrimary">#DE000000</color> <!--DE for %87 opacity-->
    <color name="textDarkSecondary">#8A000000</color> <!--8A for %54 opacity-->
    <color name="textDarkDisabled">#61000000</color> <!--61 for %38 opacity-->

    <!-- White Text Color for Dark Background -->
    <color name="textLightPrimary">#FFFFFF</color> <!--%100 opacity-->
    <color name="textLightSecondary">#B2FFFFFF</color> <!--B2 for %70 opacity-->
    <color name="textLightDisabled">#80FFFFFF</color> <!--80 for %50 opacity-->
    <color name="textLightDisabledDEPRECATED">#4CFFFFFF</color> <!--4C for %30 opacity-->
    
</resources>

<!-- Material Design Pattern: https://www.google.com/design/spec/style/color.html#color-ui-color-application -->
<!-- by Jemshit Iskenderov: www.jemshit.com -->

This is unnecessary. All the Material colors are already defined in the SDK in /values/colors_material.xml.

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2014 The Android Open Source Project

 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.
-->

<!-- Colors specific to Material themes. --> 
<resources>
<color name="background_material_dark">#ff212121</color>
<color name="background_material_light">#fffafafa</color>

<color name="ripple_material_light">#20444444</color>
<color name="ripple_material_dark">#20ffffff</color>

<color name="button_material_dark">#ff5a595b</color>
<color name="button_material_light">#ffd6d7d7</color>

<color name="bright_foreground_material_dark">@color/white</color>
<color name="bright_foreground_material_light">@color/black</color>
<!-- White 50% -->
<color name="bright_foreground_disabled_material_dark">#80ffffff</color>
<!-- Black 50% -->
<color name="bright_foreground_disabled_material_light">#80000000</color>
<color name="bright_foreground_inverse_material_dark">@color/bright_foreground_material_light</color>
<color name="bright_foreground_inverse_material_light">@color/bright_foreground_material_dark</color>

<color name="dim_foreground_material_dark">#ffbebebe</color>
<color name="dim_foreground_material_light">#ff323232</color>
<color name="dim_foreground_disabled_material_dark">#80bebebe</color>
<color name="dim_foreground_disabled_material_light">#80323232</color>

<color name="hint_foreground_material_dark">@color/bright_foreground_disabled_material_dark</color>
<color name="hint_foreground_material_light">@color/bright_foreground_disabled_material_light</color>
<!-- TODO: This is 40% alpha on the default accent color. -->
<color name="highlighted_text_material_dark">#6640c4ff</color>
<!-- TODO: This is 40% alpha on the default accent color. -->
<color name="highlighted_text_material_light">#6640c4ff</color>

<!-- Text & foreground colors -->
<eat-comment />

<!-- Black 87% -->
<color name="primary_text_default_material_light">#de000000</color>
<!-- Black 54% -->
<color name="secondary_text_material_light">#8a000000</color>
<!-- Black 54% (TODO: same as secondary?) -->
<color name="tertiary_text_material_light">#8a000000</color>

<!-- White 87% -->
<color name="primary_text_default_material_dark">#deffffff</color>
<!-- White 38% -->
<color name="secondary_text_material_dark">#61ffffff</color>
<!-- White 38% (TODO: same as secondary?) -->
<color name="tertiary_text_material_dark">#61ffffff</color>

<!-- Primary & accent colors -->
<eat-comment />

<color name="material_red_100">#fff4c7c3</color>
<color name="material_red_300">#ffe67c73</color>
<color name="material_red_500">#ffdb4437</color>
<color name="material_red_700">#ffc53929</color>
<color name="material_red_A200">#ffff5252</color>
<color name="material_red_A400">#ffff1744</color>

<color name="material_blue_100">#ffc6dafc</color>
<color name="material_blue_300">#ff7baaf7</color>
<color name="material_blue_500">#ff4285f4</color>
<color name="material_blue_700">#ff3367d6</color>
<color name="material_blue_A200">#ff448aff</color>
<color name="material_blue_A400">#ff2979ff</color>

<color name="material_light_blue_A200">#ff40c4ff</color>

<color name="material_teal_100">#ffb2ebf2</color>
<color name="material_teal_300">#ff4dd0e1</color>
<color name="material_teal_500">#ff00bcd4</color>
<color name="material_teal_700">#ff0097a7</color>
<color name="material_teal_A200">#ff18ffff</color>
<color name="material_teal_A400">#ff00e5ff</color>

<!-- Accent color used by Settings -->
<color name="material_dark_teal_A400">#ff009688</color>

<color name="material_green_100">#ffb7e1cd</color>
<color name="material_green_300">#ff57bb8a</color>
<color name="material_green_500">#ff0f9d58</color>
<color name="material_green_700">#ff0b8043</color>
<color name="material_green_A200">#ff69f0ae</color>
<color name="material_green_A400">#ff00e676</color>

<color name="material_lime_100">#fff0f4c3</color>
<color name="material_lime_300">#ffdce775</color>
<color name="material_lime_500">#ffcddc39</color>
<color name="material_lime_700">#ffafb42b</color>
<color name="material_lime_A200">#ffeeff41</color>
<color name="material_lime_A400">#ffc6ff00</color>

<color name="material_yellow_100">#fffce8b2</color>
<color name="material_yellow_300">#fff7cb4d</color>
<color name="material_yellow_500">#fff4b400</color>
<color name="material_yellow_700">#fff09300</color>
<color name="material_yellow_A200">#ffffcd40</color>
<color name="material_yellow_A400">#ffffbc00</color>

<color name="material_orange_100">#ffffe0b2</color>
<color name="material_orange_300">#ffffb74d</color>
<color name="material_orange_500">#ffff9800</color>
<color name="material_orange_700">#fff57c00</color>
<color name="material_orange_A200">#ffffab40</color>
<color name="material_orange_A400">#ffff9100</color>

<color name="material_deep_orange_100">#fff4c7c3</color>
<color name="material_deep_orange_300">#ffe67c73</color>
<color name="material_deep_orange_500">#ffff5722</color>
<color name="material_deep_orange_700">#ffc53929</color>
<color name="material_deep_orange_A200">#ffff5252</color>
<color name="material_deep_orange_A400">#ffff1744</color>

<!-- Neutral colors -->
<eat-comment />

<color name="material_grey_50">#fffafafa</color>
<color name="material_grey_100">#fff5f5f5</color>
<color name="material_grey_300">#ffeeeeee</color>
<color name="material_grey_500">#ffa3a3a3</color>
<color name="material_grey_600">#ff757575</color>
<color name="material_grey_700">#ff717171</color>
<color name="material_grey_900">#ff212121</color>

<color name="material_blue_grey_50">#ffeceff1</color>
<color name="material_blue_grey_100">#ffcfd8dc</color>
<color name="material_blue_grey_300">#ff90a4ae</color>
<color name="material_blue_grey_400">#ff78909c</color>
<color name="material_blue_grey_500">#ff607d8b</color>
<color name="material_blue_grey_600">#ff546e7a</color>
<color name="material_blue_grey_700">#ff455a64</color>
<color name="material_blue_grey_800">#ff37474f</color>
<!-- Primary color used by Settings -->
<color name="material_blue_grey_900">#ff263238</color>
<!-- Primary dark color used by Settings -->
<color name="material_blue_grey_950">#ff21272b</color>

<color name="material_brown_100">#ffd7ccc8</color>
<color name="material_brown_300">#ffa1887f</color>
<color name="material_brown_500">#ff795548</color>
<color name="material_brown_700">#ff5d4037</color>

<!-- Time picker defaults when no theme is set -->
<eat-comment />

<color name="timepicker_default_background_material">@color/primary_text_default_material_light</color>
<color name="timepicker_default_text_color_material">@color/black</color>
<color name="timepicker_default_disabled_color_material">@color/bright_foreground_disabled_material_dark</color>
<color name="timepicker_default_ampm_selected_background_color_material">@color/material_light_blue_A200</color>
<color name="timepicker_default_ampm_unselected_background_color_material">@color/transparent</color>
<color name="timepicker_default_selector_color_material">@color/material_light_blue_A200</color>
<color name="timepicker_default_numbers_background_color_material">@color/transparent</color>
</resources>

@eugenebrusov that file does not contain all material colors (try this) + text colors are not same with this gist. Just checked material doc again and only thing has changed is textLightDisabled from 30% to 50%, so
<color name="textLightDisabled">#80FFFFFF</color>

@eugenebrusov that is awesome didn't know that existed. That being said I am have trouble locating those resources in my app. Do I need to include a special version of app compat/androidx?