RGBa Browser Support CSS background Opacity

RGBa is a way to declare a color in CSS that includes alpha transparency support. This allows us to fill areas with transparent color; the first thee numbers representing the color in RGB values and the fourth representing a transparency value between 0 and 1.

Browser Support for RGBa

Mainly older browser did not support the rgba color like – Internet Explorer 8 (down to 6), Mozilla Firefox 2.x (and down). they only support solid color not rgba color.

to simulate RGBA and HSLA background in IE, you can use a gradient filter, with the same start and end color ( alpha channel is the first pair in the value of HEX )

if you don’t comfort with gradient type then you can use below code

I hope it will work for you as above code work fine for me…

“RGBa Browser Support CSS background Opacity”