diff --git a/xsd/netex_framework/netex_utility/netex_utility_types.xsd b/xsd/netex_framework/netex_utility/netex_utility_types.xsd
index b417ab2a4..8eb9ccb65 100644
--- a/xsd/netex_framework/netex_utility/netex_utility_types.xsd
+++ b/xsd/netex_framework/netex_utility/netex_utility_types.xsd
@@ -226,7 +226,7 @@ Rail transport, Roads and Road transport
 		<xsd:sequence>
 			<xsd:element name="Colour" type="ColourValueType" minOccurs="0">
 				<xsd:annotation>
-					<xsd:documentation>Default colour value for graphics associated with ENTITY - e.g. of a LINE.</xsd:documentation>
+					<xsd:documentation>Default RGB colour value for graphics associated with ENTITY - e.g. of a LINE.</xsd:documentation>
 				</xsd:annotation>
 			</xsd:element>
 			<xsd:element name="ColourName" type="xsd:string" minOccurs="0">
@@ -269,6 +269,11 @@ Rail transport, Roads and Road transport
 					</xsd:complexContent>
 				</xsd:complexType>
 			</xsd:element>
+			<xsd:element name="ColourSystem" type="xsd:string" minOccurs="0">
+				<xsd:annotation>
+					<xsd:documentation>Name of colour system tha is used for ColourName and TextColourName: : may be  RAL, https://en.wikipedia.org/wiki/RAL_colour_standard,  DIN 6164 http://www.dtpstudio.de/atlas/farbsysteme/DIN%206164_bs00_3.htm, Pantone (be aware that Pantone is commercial), etc.</xsd:documentation>
+				</xsd:annotation>
+			</xsd:element>
 		</xsd:sequence>
 	</xsd:complexType>
 	<xsd:simpleType name="ColourValueType">
@@ -287,7 +292,7 @@ Rail transport, Roads and Road transport
 		<xsd:sequence>
 			<xsd:element name="Colour" type="PrintColourValueType" minOccurs="0">
 				<xsd:annotation>
-					<xsd:documentation>Default colour value for printed  graphics associated with ENTITY - e.g. of a LINE, e.g. CMYK.</xsd:documentation>
+					<xsd:documentation>Default RGB colour value for printed  graphics associated with ENTITY - e.g. of a LINE, e.g. CMYK.</xsd:documentation>
 				</xsd:annotation>
 			</xsd:element>
 			<xsd:element name="ColourName" type="xsd:string" minOccurs="0">
@@ -320,6 +325,11 @@ Rail transport, Roads and Road transport
 					<xsd:documentation>Default Language for print</xsd:documentation>
 				</xsd:annotation>
 			</xsd:element>
+			<xsd:element name="ColourSystem" type="xsd:string" minOccurs="0">
+				<xsd:annotation>
+					<xsd:documentation>Name of colour system that is used for ColourName and TextColourName: may be  RAL, https://en.wikipedia.org/wiki/RAL_colour_standard,  DIN 6164 http://www.dtpstudio.de/atlas/farbsysteme/DIN%206164_bs00_3.htm, Pantone (be aware that Pantone is commercial), etc.</xsd:documentation>
+				</xsd:annotation>
+			</xsd:element>
 		</xsd:sequence>
 	</xsd:complexType>
 	<xsd:simpleType name="PrintColourValueType">