diff --git a/colormatrix.go b/colormatrix.go
index 9b52e4dd4..6f450186a 100644
--- a/colormatrix.go
+++ b/colormatrix.go
@@ -95,7 +95,7 @@ func ScaleColor(clr color.Color) ColorMatrix {
 }
 
 // TranslateColor returns a color matrix that translates a color matrix by clr.
-func (c *ColorMatrix) Translate(clr color.Color) ColorMatrix {
+func TranslateColor(clr color.Color) ColorMatrix {
 	rf, gf, bf, af := rgba(clr)
 	return ColorMatrix{
 		[ColorMatrixDim - 1][ColorMatrixDim]float64{