Is it feasible to integrate color meta tag with a slightly transparent background?

I have a meta tag that defines a color which I plan to use in multiple sections of my code.

#wrapper #content .post {
font-family: {font:Body};
background-color: rgba(255,255,255,0.9);
{block:IfRoundedCorners}border-radius: 9px{/block:IfRoundedCorners};
padding: 10px;
position: relative;
left: 100px;
border: 1px solid #000000;
box-shadow:rgba(0,0,0,0.1)10px 10px;
margin-bottom: -20px;
}

Instead of setting the background color to white with an opacity of 0.9, I am wondering if it can be dynamically set to reflect the color defined in my meta tag {color:Posts} while still maintaining the opacity of 0.9.

Previously, I tried replacing the line background-color: with

background-color: {color:Posts};
opacity:0.9;

Unfortunately, this caused everything within the .post section to also become transparent, which is not the desired outcome as I only want the background to be see-through.

The reason for wanting it to reference the meta tag is so that if I ever decide to change the color scheme of my page, I can make updates at the top of my code rather than having to modify every instance of its usage.

It's important to note that the meta tag uses a HEX value format, such as #FFFFFF, instead of RGB values like 255,255,255.

Do you have any suggestions or ideas on how to achieve this? Thank you in advance.

Answer №1

Converting Variables

In Tumblr, there are specific keywords available to transform a variable and alter its result. In this scenario, the objective is to convert a color from HEX to RGB. This can be achieved by prefixing the variable with RGB.

However, simply converting to RGB may not suffice as it lacks an alpha channel value. To address this, follow these modifications:

Original

background-color: rgba( {RGBcolor:Posts}, 0.9 );

Updated

background-color: rgba( 255,255,255,0.9 );

Furthermore, extend this functionality by implementing another theme operator for managing alpha values, enabling more customization possibilities.

Original

<meta name="text:Posts Background Alpha" content="0.9">

background-color: rgba( {RGBcolor:Posts}, {text:Posts Background Alpha} );

Revised

background-color: rgba( 255,255,255,0.9 );

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