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Gentleman wearing a steampunk gasmask and top hatGentleman wearing a steampunk gasmask and top hat

Sepia-toning photographs with CSS

css / filters

Estimated reading time: 1 minute, 13 seconds

Previously I’ve discussed the concept of CSS filters, and stepped you through converting an image to black and white using CSS, without needing to create a new version. We can use the same approach to sepia-tone an image for an old-timey photographic effect.

The HTML for this example is an image with an attached class:

<img src="steampunk-man-in-gasmask.jpg" alt="Gentleman wearing a steampunk gasmask and top hat" class="sepia">

Using a CSS filter is the easiest approach:

img.sepia { -webkit-filter: sepia(1); -webkit-filter: sepia(100%);  filter: sepia(100%); }

That covers Chrome 18+, Firefox 35+, Safari 6+, Opera 15+ and the latest versions of all other mobile browsers. To cover earlier versions of Firefox, we write a separate filter:

<svg version="1.1" xmlns="http://www.w3.org/2000/svg">
<filter id="old-timey">
<feColorMatrix values="0.14 0.45 0.05 0 0
0.12 0.39 0.04 0 0
0.08 0.28 0.03 0 0
0 0 0 1 0" />
</filter>
</svg>

Saving this code as a file with the name sepia.svg allows us to reference it in our CSS:

img.sepia{ 
filter: url(sepia.svg#old-timey);
-webkit-filter: sepia(1);
-webkit-filter: sepia(100%);
filter: sepia(100%);
}

Unfortunately there’s currently no explicit sepia filter for Internet Explorer, so we must fake it by placing a sepia color behind the image and making the image slightly transparent while restricting these changes to IE 9 and earlier (as I've discussed in previous articles, IE 10 and 11 are currently in an impossible situation regarding CSS filters):

img.sepia {
filter: url(sepia.svg#old-timey);
-webkit-filter: sepia(1);
-webkit-filter: sepia(100%);
filter: sepia(100%);
background-color: #5E2612;
filter: alpha(opacity = 50);
zoom:1;
}

Next, we’ll look at blurring images.

Photograph by Daniel Proulx, licensed under Creative Commons. Play with this code on CodePen.

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