diff --git a/homeassistant/components/avea/light.py b/homeassistant/components/avea/light.py
index a22129f0f4ff..ca72f7aa7e68 100644
--- a/homeassistant/components/avea/light.py
+++ b/homeassistant/components/avea/light.py
@@ -195,6 +195,16 @@ class AveaLight(LightEntity):
 
     def update(self) -> None:
         """Fetch new state data for this light."""
-        if (brightness := self._light.get_brightness()) is not None:
+        connected = self._light.connect()
+
+        try:
+            brightness = self._light.get_brightness()
+            rgb_color = self._light.get_rgb()
+        finally:
+            if connected:
+                self._light.disconnect()
+
+        if brightness is not None:
             self._attr_is_on = brightness != 0
             self._attr_brightness = round(255 * (brightness / 4095))
+        self._attr_hs_color = color_util.color_RGB_to_hs(*rgb_color)
diff --git a/tests/components/avea/test_light.py b/tests/components/avea/test_light.py
index c45edc578bc8..ad6527a31bf5 100644
--- a/tests/components/avea/test_light.py
+++ b/tests/components/avea/test_light.py
@@ -2,7 +2,7 @@
 
 from collections.abc import AsyncGenerator
 from datetime import timedelta
-from unittest.mock import MagicMock, patch
+from unittest.mock import MagicMock, call, patch
 
 from freezegun.api import FrozenDateTimeFactory
 import pytest
@@ -27,7 +27,9 @@ def mock_bulb() -> MagicMock:
     bulb = MagicMock()
     bulb.name = "Unknown"
     bulb.brightness = 0
+    bulb.connect.return_value = True
     bulb.get_brightness.return_value = 0
+    bulb.get_rgb.return_value = (0, 0, 0)
     return bulb
 
 
@@ -116,13 +118,57 @@ async def test_update_state(
     assert state.attributes[ATTR_BRIGHTNESS] is None
 
     bulb = setup_integration
+    bulb.reset_mock()
+    bulb.connect.return_value = True
     bulb.get_brightness.return_value = 2048
+    bulb.get_rgb.return_value = (0, 255, 0)
 
     freezer.tick(timedelta(seconds=30))
     async_fire_time_changed(hass)
     await hass.async_block_till_done(wait_background_tasks=True)
 
+    bulb.connect.assert_called_once()
+    bulb.get_brightness.assert_called_once()
+    bulb.get_rgb.assert_called_once()
+    bulb.disconnect.assert_called_once()
+
+    bulb.assert_has_calls(
+        [
+            call.connect(),
+            call.get_brightness(),
+            call.get_rgb(),
+            call.disconnect(),
+        ]
+    )
+
     state = hass.states.get("light.bedroom")
     assert state is not None
     assert state.state == STATE_ON
     assert state.attributes[ATTR_BRIGHTNESS] == 128
+    assert state.attributes[ATTR_HS_COLOR] == (120.0, 100.0)
+
+
+async def test_update_state_uses_cached_values_when_connect_fails(
+    hass: HomeAssistant, setup_integration: MagicMock, freezer: FrozenDateTimeFactory
+) -> None:
+    """Test updating the entity state when the shared connection fails."""
+    bulb = setup_integration
+    bulb.reset_mock()
+    bulb.connect.return_value = False
+    bulb.get_brightness.return_value = 2048
+    bulb.get_rgb.return_value = (0, 255, 0)
+
+    freezer.tick(timedelta(seconds=30))
+    async_fire_time_changed(hass)
+    await hass.async_block_till_done(wait_background_tasks=True)
+
+    bulb.connect.assert_called_once()
+    bulb.get_brightness.assert_called_once()
+    bulb.get_rgb.assert_called_once()
+    bulb.disconnect.assert_not_called()
+
+    state = hass.states.get("light.bedroom")
+    assert state is not None
+    assert state.state == STATE_ON
+    assert state.attributes[ATTR_BRIGHTNESS] == 128
+    assert state.attributes[ATTR_HS_COLOR] == (120.0, 100.0)