What is the best way to apply transparency to a color using its hex value in CSS?

Opacity can be added to hsl values using the following syntax:

background: hsla(213, 34%, 12%, .5);

Similarly, opacity can also be applied to rgb values like this:

background: rgba(134, 231, 54, .5);

But have you ever wondered how we can add opacity to hex values?

Answer №1

If you'd like to add transparency to your current hex color, here's a simple way to do it.

For instance, suppose you want to apply 40% alpha transparency to #000000 (black color), simply append 66 to the end like this: #00000066. The format to follow is #RRGGBBAA, so feel free to experiment with combinations like #00ff001C.

Curious to explore more options? Check out the full table of hex -> transparent color conversions here.

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