diff --git a/services/core/java/com/android/server/display/color/ColorDisplayService.java b/services/core/java/com/android/server/display/color/ColorDisplayService.java
index 8de150a..223b8c1 100644
--- a/services/core/java/com/android/server/display/color/ColorDisplayService.java
+++ b/services/core/java/com/android/server/display/color/ColorDisplayService.java
@@ -956,6 +956,8 @@
                         R.array.config_availableColorModes);
                 if (availableColorModes.length > 0) {
                     colorMode = availableColorModes[0];
+                } else {
+                    colorMode = NOT_SET;
                 }
             }
         }
diff --git a/services/tests/servicestests/src/com/android/server/display/color/ColorDisplayServiceTest.java b/services/tests/servicestests/src/com/android/server/display/color/ColorDisplayServiceTest.java
index 363c26b..bbed1b6 100644
--- a/services/tests/servicestests/src/com/android/server/display/color/ColorDisplayServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/display/color/ColorDisplayServiceTest.java
@@ -16,11 +16,14 @@
 
 package com.android.server.display.color;
 
+import static com.google.common.truth.Truth.assertThat;
 import static com.google.common.truth.Truth.assertWithMessage;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -1130,6 +1133,15 @@
                 eq(ColorDisplayManager.COLOR_MODE_BOOSTED), any(), eq(Display.COLOR_MODE_INVALID));
     }
 
+    @Test
+    public void getColorMode_noAvailableModes_returnsNotSet() {
+        when(mResourcesSpy.getIntArray(R.array.config_availableColorModes))
+                .thenReturn(new int[] {});
+        startService();
+        verify(mDisplayTransformManager, never()).setColorMode(anyInt(), any(), anyInt());
+        assertThat(mBinderService.getColorMode()).isEqualTo(-1);
+    }
+
     /**
      * Configures Night display to use a custom schedule.
      *