diff --git a/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceController.java b/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceController.java
index 09243e59bb0..ea7fb7c3111 100644
--- a/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceController.java
+++ b/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceController.java
@@ -17,6 +17,7 @@
 package com.android.settings.accessibility;
 
 import android.content.Context;
+import android.hardware.display.ColorDisplayManager;
 import android.provider.Settings;
 
 import androidx.preference.Preference;
@@ -34,7 +35,12 @@ public class ReduceBrightColorsIntensityPreferenceController extends SliderPrefe
 
     @Override
     public int getAvailabilityStatus() {
-        // TODO(b/170970675): Call into ColorDisplayService (CDS) to get availability/config status
+        if (!ColorDisplayManager.isColorTransformAccelerated(mContext)) {
+            return UNSUPPORTED_ON_DEVICE;
+        } else if (Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED, 0) != 1) {
+            return DISABLED_DEPENDENT_SETTING;
+        }
         return AVAILABLE;
     }
 
@@ -59,14 +65,14 @@ public class ReduceBrightColorsIntensityPreferenceController extends SliderPrefe
 
     @Override
     public int getSliderPosition() {
-        // TODO(b/170970675): Call into CDS to get intensity
-        return 0;
+        return Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_LEVEL, 0);
     }
 
     @Override
     public boolean setSliderPosition(int position) {
-        // TODO(b/170970675): Call into CDS to set intensity
-        return true;
+        return Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_LEVEL, position);
     }
 
     @Override
diff --git a/src/com/android/settings/accessibility/ReduceBrightColorsPreferenceController.java b/src/com/android/settings/accessibility/ReduceBrightColorsPreferenceController.java
index c5ce77caac0..82b3a642cbe 100644
--- a/src/com/android/settings/accessibility/ReduceBrightColorsPreferenceController.java
+++ b/src/com/android/settings/accessibility/ReduceBrightColorsPreferenceController.java
@@ -17,6 +17,7 @@
 package com.android.settings.accessibility;
 
 import android.content.Context;
+import android.hardware.display.ColorDisplayManager;
 import android.provider.Settings;
 
 import com.android.settings.core.BasePreferenceController;
@@ -37,7 +38,7 @@ public class ReduceBrightColorsPreferenceController extends BasePreferenceContro
 
     @Override
     public int getAvailabilityStatus() {
-        // TODO(b/170970675): call into CDS to get availability/config status
-        return AVAILABLE;
+        return ColorDisplayManager.isColorTransformAccelerated(mContext) ? AVAILABLE
+                : UNSUPPORTED_ON_DEVICE;
     }
 }
diff --git a/tests/unit/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceControllerTest.java b/tests/unit/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceControllerTest.java
index 4cc17dcc87c..dee88176da5 100644
--- a/tests/unit/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceControllerTest.java
+++ b/tests/unit/src/com/android/settings/accessibility/ReduceBrightColorsIntensityPreferenceControllerTest.java
@@ -18,32 +18,69 @@ package com.android.settings.accessibility;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
 import android.content.Context;
+import android.content.res.Resources;
+import android.provider.Settings;
 
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 
+import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 @RunWith(AndroidJUnit4.class)
-/** TODO(b/170970675): Update and add tests after ColorDisplayService work is integrated */
 public class ReduceBrightColorsIntensityPreferenceControllerTest {
-    private final Context mContext = ApplicationProvider.getApplicationContext();
-    private final ReduceBrightColorsIntensityPreferenceController mPreferenceController =
-            new ReduceBrightColorsIntensityPreferenceController(mContext,
-            "rbc_intensity");
+
+    private Context mContext;
+    private Resources mResources;
+    private ReduceBrightColorsIntensityPreferenceController mPreferenceController;
+
+    @Before
+    public void setUp() {
+        mContext = spy(ApplicationProvider.getApplicationContext());
+        mResources = spy(mContext.getResources());
+        when(mContext.getResources()).thenReturn(mResources);
+        mPreferenceController = new ReduceBrightColorsIntensityPreferenceController(mContext,
+                "rbc_intensity");
+    }
 
     @Test
     public void isAvailable_configuredRbcAvailable_enabledRbc_shouldReturnTrue() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED, 1);
+        doReturn(true).when(mResources).getBoolean(
+                com.android.internal.R.bool.config_setColorTransformAccelerated);
         assertThat(mPreferenceController.isAvailable()).isTrue();
     }
     @Test
-    public void isAvailable_configuredRbcAvailable_disabledRbc_shouldReturnFalse() {
+    public void isAvailable_configuredRbcAvailable_disabledRbc_shouldReturnTrue() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED, 0);
+        doReturn(true).when(mResources).getBoolean(
+                com.android.internal.R.bool.config_setColorTransformAccelerated);
         assertThat(mPreferenceController.isAvailable()).isTrue();
     }
     @Test
     public void isAvailable_configuredRbcUnavailable_enabledRbc_shouldReturnFalse() {
-        assertThat(mPreferenceController.isAvailable()).isTrue();
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED, 1);
+        doReturn(false).when(mResources).getBoolean(
+                com.android.internal.R.bool.config_setColorTransformAccelerated);
+        assertThat(mPreferenceController.isAvailable()).isFalse();
+    }
+
+    @Test
+    public void onPreferenceChange_changesTemperature() {
+        Settings.Secure.putInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED, 1);
+        mPreferenceController.onPreferenceChange(/* preference= */ null, 20);
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.REDUCE_BRIGHT_COLORS_LEVEL, 0))
+                .isEqualTo(20);
     }
 }