diff --git a/DrmHwcTwo.cpp b/DrmHwcTwo.cpp
index 38ca663..5b9b5df 100644
--- a/DrmHwcTwo.cpp
+++ b/DrmHwcTwo.cpp
@@ -782,6 +782,9 @@
 HWC2::Error DrmHwcTwo::HwcDisplay::SetColorMode(int32_t mode) {
   supported(__func__);
 
+  if (mode < HAL_COLOR_MODE_NATIVE || mode > HAL_COLOR_MODE_BT2100_HLG)
+    return HWC2::Error::BadParameter;
+
   if (mode != HAL_COLOR_MODE_NATIVE)
     return HWC2::Error::Unsupported;