diff --git a/core/modules/editor/engines/simple.js b/core/modules/editor/engines/simple.js
index 1f46505f7..3c7f7d0c9 100644
--- a/core/modules/editor/engines/simple.js
+++ b/core/modules/editor/engines/simple.js
@@ -33,7 +33,7 @@ function SimpleEngine(options) {
 	} else {
 		if(this.widget.editType === "color") {
 			// The <input type="color"> element requires a six digit hex value
-			this.domNode.value = $tw.utils.convertColorToCSSRGBString(this.value);
+			this.domNode.value = $tw.utils.convertCSSColorToRGBString(this.value);
 		} else {
 			this.domNode.value = this.value;
 		}
diff --git a/core/modules/utils/dom/color-utils.js b/core/modules/utils/dom/color-utils.js
index 5e4c481fb..01379c27d 100644
--- a/core/modules/utils/dom/color-utils.js
+++ b/core/modules/utils/dom/color-utils.js
@@ -42,9 +42,9 @@ exports.parseCSSColorObject = function(colourString) {
 };
 
 /*
-Convert a Color.js colour to a CSS RGB string suitable for use with the <input type="color"> element
+Convert a CSS colour to an RGB string suitable for use with the <input type="color"> element
 */
-exports.convertColorToCSSRGBString = function(colourString) {
+exports.convertCSSColorToRGBString = function(colourString) {
 	var c = exports.parseCSSColorObject(colourString);
 	if(c) {
 		var hex = c.toString({format: "hex"});