Projects/Usability/HIG/Color: Difference between revisions

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==Purpose==
{{ Moved To Community | KDE_Visual_Design_Group/HIG/Color }}
Color is a basal quality in human perception. Color can be used for communication, it is a very efficient way to direct attention, and significance can assigned to an object with color. However, color is a historical and cultural phenomenon, and is subject of continuous aesthetical changes. Furthermore, it should be taken into consideration that a rather high percentage of population has a perception disorder ranging from difficulties to discriminate between red and green to complete color blindness.
 
==Guidelines==
* Choose colors by selecting the appropriate theme color or system color. You can use the [http://kde-look.org/content/show.php/CheckColorRoles?content=90034 CheckColorRoles] theme to detect bugs regarding the use of system colors in your application.
* Never use color as a primary method of communication, but as a secondary method to reinforce meaning visually.
* Make foreground color contrasting to background.
* Consider accessibility for users with color vision deficiency (~5% population).
==Implementation==
[http://api.kde.org/4.10-api/kdelibs-apidocs/kdeui/html/classKColorScheme.html KColorScheme] provides methods to pick readable colors based on the type of message to convey.
 
[[Category:Usability]][[Category: Presentation]][[Category:Layout]]

Latest revision as of 11:26, 4 August 2016

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