Inventions on Using Colors in Graphical User Interfaces
  Color is an important aspect of any graphical user interface (GUI). Color is used to make a GUI attractive and meaningful. But there are difficulties in using colors too. Improper use of color can result in adverse effects. Wrong colors at wrong place can make the GUI look clumsy and confusing. Apart from the aesthetics issues there are many other issues involved with colors too.   One of the contradictions relating to usage of color is "The color of the GUI should be customizable to suit user preference. But at the same time it should not be customizable, as that would cause annoyance and confusion to other users."   Another contraction relating to using color is "The user should be displayed all 16 million colors to select the desired color precisely, But from another angle the user should not be displayed all 16 million colors as that would create confusion and difficulty in selection."   This article analyses some inventions selected from US Patent database and illustrates how the inventors have been able to solve various contradictions relating to usage of colors in Graphical User Interface. 
Umakant Mishra
cs.HC