Make it easier to select custom colours

Please could you add in an option to select custom colours so that you actually pick the colour you're selecting from a colour range box, rather than just putting in the number. Many users will not know how to get hold of the number for a specific colour, and I for instance only know how to get hold of it by going to my LiveJournal, getting into the Customise Journal Page, going to the tab for changing colours, selecting a colour there from a colour range box, copying the number for that colour over to ColorfulTabs, and then remembering not to save the changes to my LiveJournal!