diff --git a/lib/kwinglutils.cpp b/lib/kwinglutils.cpp
index 50593af815..eca93a789e 100644
--- a/lib/kwinglutils.cpp
+++ b/lib/kwinglutils.cpp
@@ -1040,6 +1040,15 @@ bool GLShader::setUniform(const char* name, const QMatrix4x4& value)
     return (location >= 0);
 }
 
+bool GLShader::setUniform(const char* name, const QColor& color)
+{
+    const int location = uniformLocation(name);
+    if (location >= 0) {
+        glUniform4f(location, color.redF(), color.greenF(), color.blueF(), color.alphaF());
+    }
+    return (location >= 0);
+}
+
 int GLShader::attributeLocation(const char* name)
     {
     int location = glGetAttribLocation(mProgram, name);
diff --git a/lib/kwinglutils.h b/lib/kwinglutils.h
index cc928848d0..8ff045b71d 100644
--- a/lib/kwinglutils.h
+++ b/lib/kwinglutils.h
@@ -258,6 +258,7 @@ class KWIN_EXPORT GLShader
         bool setUniform(const char* name, const QVector3D& value);
         bool setUniform(const char* name, const QVector4D& value);
         bool setUniform(const char* name, const QMatrix4x4& value);
+        bool setUniform(const char* name, const QColor& color);
         int attributeLocation(const char* name);
         bool setAttribute(const char* name, float value);
         /**