A guide on applying numeric values to set RGB colors in CSS

I'm new to HTML/CSS and I've noticed that there are different ways to set color codes in CSS, such as using names like yellow or hex codes like #ffff00. I've also learned that each color has a numeric equivalent, for example, yellow is represented by 255,255,0. However, when I tried applying the following style to my body element, it didn't have any effect:

Here's my CSS:

body {
background-color: 255,255,0;
color: black !important;
}

Can someone please help me with this issue?

Answer №1

Try this approach

body {
    background-color: rgb(255,0,255);
}

If you want to include some transparency, use the rgba property and set the last value to adjust opacity level where 1 represents 100%.

body {
    background-color: rgba(255,0,255, 0.5);
}

Answer №2

Make sure to include the following rule in your CSS file: rgb(0,0,0) or rgba(0,0,0,0.5) to adjust opacity.

body {
    background-color: rgb(255,255,0);
    color: rgba(0,0,0,0.7);
}

Answer №3

RGB color with full opacity: For full transparency, use rgba where the fourth value is set to 1 for maximum opacity.

.page {
background-color: rgb(255,255,0);
color: black !important;
padding:25px;
}
<div class="page"></div>

Answer №4

.main-content {
background-color: rgb(0,255,255);
color: white !important;
padding:20px;
}
<div class="main-content"></div>

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