diff --git a/esphome/components/as7343/as7343.cpp b/esphome/components/as7343/as7343.cpp
index a02b49b1a9..485df1fec8 100644
--- a/esphome/components/as7343/as7343.cpp
+++ b/esphome/components/as7343/as7343.cpp
@@ -269,6 +269,10 @@ void AS7343Component::calculate_and_publish() {
   ESP_LOGD(TAG, "  ,Lux(XYZ)            , %f, lx", lux2);
   ESP_LOGD(TAG, "  ,Color temp(XYZ)     , %f, K", cct);
 
+  if (this->ct_ != nullptr) {
+    this->ct_->publish_state(cct);
+  }
+
   if (this->illuminance_ != nullptr) {
     this->illuminance_->publish_state(lux2);
   }
diff --git a/esphome/components/as7343/as7343.h b/esphome/components/as7343/as7343.h
index 5847d541b0..73e5eb37ee 100644
--- a/esphome/components/as7343/as7343.h
+++ b/esphome/components/as7343/as7343.h
@@ -35,6 +35,7 @@ class AS7343Component : public PollingComponent, public i2c::I2CDevice {
   void set_irradiance_photopic_sensor(sensor::Sensor *sensor) { irradiance_photopic_ = sensor; }
   void set_ppfd_sensor(sensor::Sensor *sensor) { ppfd_ = sensor; }
   void set_saturation_sensor(sensor::Sensor *sensor) { this->saturated_ = sensor; }
+  void set_color_temperature_sensor(sensor::Sensor *sensor) { ct_ = sensor; }
 
   void set_gain(AS7343Gain gain) { gain_ = gain; }
   void set_atime(uint8_t atime) { atime_ = atime; }
@@ -114,6 +115,7 @@ class AS7343Component : public PollingComponent, public i2c::I2CDevice {
   sensor::Sensor *irradiance_{nullptr};
   sensor::Sensor *irradiance_photopic_{nullptr};
   sensor::Sensor *ppfd_{nullptr};
+  sensor::Sensor *ct_{nullptr};
 
   sensor::Sensor *saturated_{nullptr};
 
diff --git a/esphome/components/as7343/sensor.py b/esphome/components/as7343/sensor.py
index 507716b51b..8e5604017d 100644
--- a/esphome/components/as7343/sensor.py
+++ b/esphome/components/as7343/sensor.py
@@ -2,6 +2,7 @@ import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import i2c, sensor
 from esphome.const import (
+    CONF_COLOR_TEMPERATURE,
     CONF_GAIN,
     CONF_ID,
     CONF_NAME,
@@ -10,8 +11,10 @@ from esphome.const import (
     CONF_GLASS_ATTENUATION_FACTOR,
     ICON_BRIGHTNESS_5,
     STATE_CLASS_MEASUREMENT,
+    UNIT_KELVIN,
     UNIT_LUX,
     UNIT_PERCENT,
+    ICON_THERMOMETER,
 )
 
 
@@ -163,6 +166,15 @@ CONFIG_SCHEMA = (
                 ),
                 key=CONF_NAME,
             ),
+            cv.Optional(CONF_COLOR_TEMPERATURE): cv.maybe_simple_value(
+                sensor.sensor_schema(
+                    unit_of_measurement=UNIT_KELVIN,
+                    icon=ICON_THERMOMETER,
+                    accuracy_decimals=0,
+                    state_class=STATE_CLASS_MEASUREMENT,
+                ),
+                key=CONF_NAME,
+            ),
         }
     )
     .extend(cv.polling_component_schema("60s"))
@@ -188,6 +200,7 @@ SENSORS = {
     CONF_IRRADIANCE_PHOTOPIC: "set_irradiance_photopic_sensor",
     CONF_PPFD: "set_ppfd_sensor",
     CONF_SATURATION: "set_saturation_sensor",
+    CONF_COLOR_TEMPERATURE: "set_color_temperature_sensor",
 }