I'm drawing a web banner. How can I do it using a 'Websafe' color palette?

I'm drawing a web banner. How can I do it using a 'Websafe' color palette?

You can change the standard palette of OpenOffice.org to a palette in which the colors are expressed as hexadecimal values or web color names by following this procedure:

• Draw an object on the document page.
• Click on the object to select it.
• Right click on it to display the context menu.
• Select the Area... item.
• In the pop-up window that appears, flip to the Colors tab.
• Click on the Load Color List icon.
• Select the html.soc file and click OK. (standard path: OpenOffice60/user/config/)