I am looking for the ability to use the value of a parameter passed into the report to be used as the hex colour value of the background in a conditional style, does anyone know how to achieve this? My code so far: <style name="Parameterised Text Colour"> <conditionalStyle> <conditionExpression><![CDATA[$P{styling}!=null]]></conditionExpression> <style backcolor={$P{style}}/> </conditionalStyle> <conditionalStyle> <conditionExpression><![CDATA[$P{styling}==null]]></conditionExpression> <style backcolor="#000000"/> </conditionalStyle> </style> Any help is greatly appreciated