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Forums  >  Web, Print & Media Design  >  Opacity – RGBA Values

Opacity – RGBA Values

Published on 11/29/2009 by Nehal Gohel
Opacity – RGBA Values
 
The RGB model is extended to RGBA to include ‘alpha’ to express opacity of a color.
The alpha value is expressed in decimals between 0 and 1. For example: 0.5 for semi transparent, 0.8 for 80% opacity and so on.
 
Example
 
semi-transparent solid blue
and
very transparent solid orange
 
p {color: rgba(0,0,255,0.5)}
p { color: rgba(100%, 50%, 0%, 0.1) }
 
 

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Nehal Gohel
Posted:November 29, 2009 Subject: Opacity – RGBA Values Comment

Opacity – RGBA Values

 

The RGB model is extended to RGBA to include ‘alpha’ to express opacity of a color.

The alpha value is expressed in decimals between 0 and 1. For example: 0.5 for semi transparent, 0.8 for 80% opacity and so on.

 

Example

 

semi-transparent solid blue

and

very transparent solid orange

 

p {color: rgba(0,0,255,0.5)}

p { color: rgba(100%, 50%, 0%, 0.1) }

 

 


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