diff --git a/include/CColor.hpp b/include/CColor.hpp
index bbfd051..cbbc4ee 100644
--- a/include/CColor.hpp
+++ b/include/CColor.hpp
@@ -294,6 +294,9 @@ public:
     void fromHSL(float h, float s, float l, float _a = 1.0);
 
     void toHSL(float& h, float& s, float& l);
+
+    CColor toGrayscale()
+    { return {Math::sqrtF(magSquared() / 3)}; }
 };
 
 static inline CColor operator+(float lhs, const CColor& rhs)