Error: Function rgb is missing argument $green in SASS-CodePudding

I am getting an error while writing the CSS file using SCSS
The error is as follows:

Error: Function RGB is missing in argument $green.
       on line 116 of sass/c:\Users\User\Desktop\This PC\style.scss
>>     background-color:RGB(111 197 236 / 49%);

The HTML and SCSS code are mentioned below:

.header-hover:hover{
    background-color: rgb(111 197 236 / 49%);
}

<i ></i>

I had used font awesome to get the icons.

CodePudding user response：

sass hasn't yet caught up to the new standard so try to use rgba(111, 197, 236, 0.49); instead of rgb(111 197 236 / 49%)