Article information
Article relates to	RadChart v2.x RadTChart for ASP.NET AJAX (Telerik.Web.UI 2008.1.x)
Created by	Bob, Telerik
Last modified	April 12 2008
Last modified by	Ves, Telerik

HOW-TO
Set hexadecimal value for color transparency of RadChart elements.

SOLUTION
To set a semi-transparent color to a chart element in the chart's XML configuration file, you need to insert the transparency value before the color code.

Example:
Solid white: #FFFFFF (#RRGGBB R - red, G - green, B - blue)
Semi-transparent white: #50FFFFFF(#AARRGGBB A - alpha blending value)

where “50” is the value of the transparency component in the hexadecimal number system. To convert a decimal percentage to a hexadecimal value, you can use the default Windows Calculator.

1. Make sure you are in Scientific view (see screenshot below).
2. Select the “Dec” mode and enter a decimal value for the transparency. Values range from 0 to 255, where 0 is fully transparent and 255 is solid color. If you want a 50% transparency, you need to enter 127.
3. On select of “Hex,” from the radiobutton group, the calculator will display the hexadecimal value. For 50% transparency, or 127, this will be 7F

Note:
If the hexadecimal value is a single digit or letter, enter a zero before it. For example, the hexadecimal value of 10 is “A.” If you want to set 10 for the transparency of the white color, enter “0AFFFFFF.”. Values range from 0 to 255 in decimal.