diff --git a/homeassistant/components/velbus/light.py b/homeassistant/components/velbus/light.py
index 2926b30c22f..1fcb23e7485 100644
--- a/homeassistant/components/velbus/light.py
+++ b/homeassistant/components/velbus/light.py
@@ -13,9 +13,10 @@ from homeassistant.components.light import (
     ATTR_BRIGHTNESS,
     ATTR_FLASH,
     ATTR_TRANSITION,
+    COLOR_MODE_BRIGHTNESS,
+    COLOR_MODE_ONOFF,
     FLASH_LONG,
     FLASH_SHORT,
-    SUPPORT_BRIGHTNESS,
     SUPPORT_FLASH,
     SUPPORT_TRANSITION,
     LightEntity,
@@ -49,7 +50,9 @@ class VelbusLight(VelbusEntity, LightEntity):
     """Representation of a Velbus light."""
 
     _channel: VelbusDimmer
-    _attr_supported_features = SUPPORT_BRIGHTNESS | SUPPORT_TRANSITION
+    _attr_color_mode = COLOR_MODE_BRIGHTNESS
+    _attr_supported_color_modes = {COLOR_MODE_BRIGHTNESS}
+    _attr_supported_features = SUPPORT_TRANSITION
 
     @property
     def is_on(self) -> bool:
@@ -97,6 +100,8 @@ class VelbusButtonLight(VelbusEntity, LightEntity):
     _channel: VelbusButton
     _attr_entity_registry_enabled_default = False
     _attr_entity_category = EntityCategory.CONFIG
+    _attr_color_mode = COLOR_MODE_ONOFF
+    _attr_supported_color_modes = {COLOR_MODE_ONOFF}
     _attr_supported_features = SUPPORT_FLASH
 
     def __init__(self, channel: VelbusChannel) -> None: