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The  Art  of  Colors A few tips for user interface designers by elisa giaccardi [email_address]
Let’s  warm up   !
Let’s start  with some  basics
There are  two   color systems
Additive Subtractive red  +  green  +  blue  = white magenta   +   yellow   +   cyan   =   black
UI   designers use  the   additive system
What is  this  jargon  ? hue brilliance saturation
Hue name and  properties  of a color  that enables it  to be perceived
Brilliance how light or dark a color is
Saturation the level and mixture of  white ,  black ,  grey  or  complimentary  included in colors
What are  these  ? primary secondary tertiary colors
Learn the  color wheel
Another way  to  visualize
Another way  to  visualize
Primary  colors
Secondary  colors
Tertiary  colors
Analogous  colors
Opposite colors  are  complementary
Combinations of  opposite or analogous colors are  harmonic
Now you know the  jargon  too!
Wasn’t it  additive   ?
Web color   wheel
Do colors have  personality  ?
 
© Edward Burtynsky What about  this  orange  ?
© Philip-Lorca diCorcia  How about  this  yellow  ?
© Cindy Sherman  And what about  this  green  ?
It’s about  relationships
Dynamic  relationship
Dynamic-static  relationship
Static  relationship
It’s a matter  of  contrast
 
 
 
 
It’s about  balance
 
 
Think with your  eyes  !
Color palette   tips & tools
Strive for  harmony
Be mindful of  contrast effects
Understand  color dominance
 
Rules of thumb for UI designers
Ensure  text readability  through contrast Avoid the use of textures and pattern for backgrounds behind texts Avoid contrasts that cause eye fatigue Avoid color combinations that cause illusions when positioned together
Enhance  user experience   Establish conventions and use color consistently Use color both to support users’ tasks and for branding Use color to enhance aesthetic appeal and user satisfaction
Use color for identification, grouping, and  emphasis Relate visual elements Demarcate different areas Highlight important task-related information
Use color associations in expressing  state information Be consistent with job-related color associations Learn about cultural color associations
Indicate  availability  using color or value For links For controls For icons For windows
Some good  readings
Itten, Johannes The Art of Color New York: John Wiley & Sons, 1974 Pabini, Gabriel-Petit Color Theory for Digital Displays http://www.uxmatters.com/ Pabini, Gabriel-Petit Applying Color Theory to Digital Displays http://www.uxmatters.com/
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