diff --git a/src/wled/models.py b/src/wled/models.py
index 008c9721..52f94e87 100644
--- a/src/wled/models.py
+++ b/src/wled/models.py
@@ -287,6 +287,13 @@ class Segment(BaseModel):
     from top-left corner of the matrix.
     """
 
+    cct: int = field(default=0)
+    """White spectrum color temperature.
+
+    0 indicates the warmest possible color temperature,
+    255 indicates the coldest temperature
+    """
+
 
 @dataclass(kw_only=True)
 class Leds:
diff --git a/src/wled/wled.py b/src/wled/wled.py
index 17c53584..1e442bc4 100644
--- a/src/wled/wled.py
+++ b/src/wled/wled.py
@@ -327,6 +327,7 @@ async def segment(  # noqa: PLR0912, PLR0913
         start: int | None = None,
         stop: int | None = None,
         transition: int | None = None,
+        cct: int | None = None,
     ) -> None:
         """Change state of a WLED Light segment.
 
@@ -355,6 +356,7 @@ async def segment(  # noqa: PLR0912, PLR0913
             transition:  Duration of the crossfade between different
                 colors/brightness levels. One unit is 100ms, so a value of 4
                 results in a transition of 400ms.
+            cct: White spectrum color temperature.
 
         Raises:
         ------
@@ -383,6 +385,7 @@ async def segment(  # noqa: PLR0912, PLR0913
             "start": start,
             "stop": stop,
             "sx": speed,
+            "cct": cct,
         }
 
         # Find effect if it was based on a name