diff --git a/homeassistant/components/hue/v2/group.py b/homeassistant/components/hue/v2/group.py
index b8fdb0b0b1d..835f90d3f6f 100644
--- a/homeassistant/components/hue/v2/group.py
+++ b/homeassistant/components/hue/v2/group.py
@@ -298,7 +298,10 @@ class GroupedHueLight(HueBaseEntity, LightEntity):
             supported_color_modes.add(COLOR_MODE_ONOFF)
         self._attr_supported_color_modes = supported_color_modes
         # pick a winner for the current colormode
-        if lights_in_colortemp_mode == lights_with_color_temp_support:
+        if (
+            lights_with_color_temp_support > 0
+            and lights_in_colortemp_mode == lights_with_color_temp_support
+        ):
             self._attr_color_mode = COLOR_MODE_COLOR_TEMP
         elif lights_with_color_support > 0:
             self._attr_color_mode = COLOR_MODE_XY