Progress® Telerik® Reporting R3 2020

How do I make colors display with partial transparency?

This article is obsolete. The Chart item is now superseded by the more advanced Graph item. The Graph item is most often used for building powerful OLAP/Pivot charts.

"If I have several series that overlap and I want partial transparency so I can see all series at one time (without it being a stacked chart), how do I set a color to be transparent?" 

When defining the color, add an "alpha" channel, i.e. a percentage of transparency to the beginning of the array that defines the color.  For example:

255, 0, 0 = Red

80, 255, 0, 0 = Red that is 80% transparent.


In the example below both series have a main color with a transparency of 90%.

Transparent Colors

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