diff --git a/homeassistant/components/google_assistant/trait.py b/homeassistant/components/google_assistant/trait.py
index 8025a291031..44251a3be04 100644
--- a/homeassistant/components/google_assistant/trait.py
+++ b/homeassistant/components/google_assistant/trait.py
@@ -553,15 +553,9 @@ class ColorSettingTrait(_Trait):
             response["colorModel"] = "hsv"
 
         if light.color_temp_supported(color_modes):
-            # Max Kelvin is Min Mireds K = 1000000 / mireds
-            # Min Kelvin is Max Mireds K = 1000000 / mireds
             response["colorTemperatureRange"] = {
-                "temperatureMaxK": color_util.color_temperature_mired_to_kelvin(
-                    attrs.get(light.ATTR_MIN_MIREDS)
-                ),
-                "temperatureMinK": color_util.color_temperature_mired_to_kelvin(
-                    attrs.get(light.ATTR_MAX_MIREDS)
-                ),
+                "temperatureMaxK": int(attrs.get(light.ATTR_MAX_COLOR_TEMP_KELVIN)),
+                "temperatureMinK": int(attrs.get(light.ATTR_MIN_COLOR_TEMP_KELVIN)),
             }
 
         return response
@@ -583,7 +577,7 @@ class ColorSettingTrait(_Trait):
                 }
 
         if light.color_temp_supported([color_mode]):
-            temp = self.state.attributes.get(light.ATTR_COLOR_TEMP)
+            temp = self.state.attributes.get(light.ATTR_COLOR_TEMP_KELVIN)
             # Some faulty integrations might put 0 in here, raising exception.
             if temp == 0:
                 _LOGGER.warning(
@@ -592,9 +586,7 @@ class ColorSettingTrait(_Trait):
                     temp,
                 )
             elif temp is not None:
-                color["temperatureK"] = color_util.color_temperature_mired_to_kelvin(
-                    temp
-                )
+                color["temperatureK"] = temp
 
         response = {}
 
@@ -606,11 +598,9 @@ class ColorSettingTrait(_Trait):
     async def execute(self, command, data, params, challenge):
         """Execute a color temperature command."""
         if "temperature" in params["color"]:
-            temp = color_util.color_temperature_kelvin_to_mired(
-                params["color"]["temperature"]
-            )
-            min_temp = self.state.attributes[light.ATTR_MIN_MIREDS]
-            max_temp = self.state.attributes[light.ATTR_MAX_MIREDS]
+            temp = params["color"]["temperature"]
+            max_temp = self.state.attributes[light.ATTR_MAX_COLOR_TEMP_KELVIN]
+            min_temp = self.state.attributes[light.ATTR_MIN_COLOR_TEMP_KELVIN]
 
             if temp < min_temp or temp > max_temp:
                 raise SmartHomeError(
@@ -621,7 +611,10 @@ class ColorSettingTrait(_Trait):
             await self.hass.services.async_call(
                 light.DOMAIN,
                 SERVICE_TURN_ON,
-                {ATTR_ENTITY_ID: self.state.entity_id, light.ATTR_COLOR_TEMP: temp},
+                {
+                    ATTR_ENTITY_ID: self.state.entity_id,
+                    light.ATTR_COLOR_TEMP_KELVIN: temp,
+                },
                 blocking=not self.config.should_report_state,
                 context=data.context,
             )
diff --git a/tests/components/google_assistant/test_google_assistant.py b/tests/components/google_assistant/test_google_assistant.py
index ea30f89e0ef..2b0bfd82908 100644
--- a/tests/components/google_assistant/test_google_assistant.py
+++ b/tests/components/google_assistant/test_google_assistant.py
@@ -491,7 +491,7 @@ async def test_execute_request(hass_fixture, assistant_client, auth_header) -> N
     assert kitchen.attributes.get(light.ATTR_RGB_COLOR) == (255, 0, 0)
 
     bed = hass_fixture.states.get("light.bed_light")
-    assert bed.attributes.get(light.ATTR_COLOR_TEMP) == 212
+    assert bed.attributes.get(light.ATTR_COLOR_TEMP_KELVIN) == 4700
 
     assert hass_fixture.states.get("switch.decorative_lights").state == "off"
 
diff --git a/tests/components/google_assistant/test_smart_home.py b/tests/components/google_assistant/test_smart_home.py
index c5e17155067..a1c2ba1b3d4 100644
--- a/tests/components/google_assistant/test_smart_home.py
+++ b/tests/components/google_assistant/test_smart_home.py
@@ -1450,7 +1450,7 @@ async def test_sync_message_recovery(
         "light.bad_light",
         "on",
         {
-            "min_mireds": "badvalue",
+            "max_color_temp_kelvin": "badvalue",
             "supported_color_modes": ["color_temp"],
         },
     )
diff --git a/tests/components/google_assistant/test_trait.py b/tests/components/google_assistant/test_trait.py
index 9e9c7015674..d269b5ff0d7 100644
--- a/tests/components/google_assistant/test_trait.py
+++ b/tests/components/google_assistant/test_trait.py
@@ -77,7 +77,7 @@ from homeassistant.const import (
 )
 from homeassistant.core import DOMAIN as HOMEASSISTANT_DOMAIN, HomeAssistant, State
 from homeassistant.core_config import async_process_ha_core_config
-from homeassistant.util import color, dt as dt_util
+from homeassistant.util import dt as dt_util
 from homeassistant.util.unit_conversion import TemperatureConverter
 
 from . import BASIC_CONFIG, MockConfig
@@ -870,10 +870,10 @@ async def test_color_setting_temperature_light(hass: HomeAssistant) -> None:
             "light.bla",
             STATE_ON,
             {
-                light.ATTR_MIN_MIREDS: 200,
+                light.ATTR_MAX_COLOR_TEMP_KELVIN: 5000,
                 light.ATTR_COLOR_MODE: "color_temp",
-                light.ATTR_COLOR_TEMP: 300,
-                light.ATTR_MAX_MIREDS: 500,
+                light.ATTR_COLOR_TEMP_KELVIN: 3333,
+                light.ATTR_MIN_COLOR_TEMP_KELVIN: 2000,
                 "supported_color_modes": ["color_temp"],
             },
         ),
@@ -906,7 +906,7 @@ async def test_color_setting_temperature_light(hass: HomeAssistant) -> None:
     assert len(calls) == 1
     assert calls[0].data == {
         ATTR_ENTITY_ID: "light.bla",
-        light.ATTR_COLOR_TEMP: color.color_temperature_kelvin_to_mired(2857),
+        light.ATTR_COLOR_TEMP_KELVIN: 2857,
     }
 
 
@@ -924,9 +924,9 @@ async def test_color_light_temperature_light_bad_temp(hass: HomeAssistant) -> No
             "light.bla",
             STATE_ON,
             {
-                light.ATTR_MIN_MIREDS: 200,
-                light.ATTR_COLOR_TEMP: 0,
-                light.ATTR_MAX_MIREDS: 500,
+                light.ATTR_MAX_COLOR_TEMP_KELVIN: 5000,
+                light.ATTR_COLOR_TEMP_KELVIN: 0,
+                light.ATTR_MIN_COLOR_TEMP_KELVIN: 2000,
             },
         ),
         BASIC_CONFIG,