We can already do linear gradients and radial gradients with CSS quite easily, and now there’s a 3rd type of gradient that will be defined in the spec. Conic gradients are similar to radial gradients, except that the color stops are on the outer edge of the circle that gets created.
For example, here’s a radial gradient and a conic gradient that have the same color stops:
.gradient {
width: 200px;
height: 200px;
border-radius: 50%;
}
.radial {
background: radial-gradient(#FAE042, #4AAE9B);
}
.conic {
background: conic-gradient(#FAE042, #4AAE9B);
}
And here’s the markup:
<div class="gradient radial"></div>
<div class="gradient conic"></div>
Conic gradients can have multiple color stops:
.conic {
background: conic-gradient(cyan, magenta, yellow, black);
}
Each color can specify it’s stop position using units such as degrees, turns or percentages:
.conic {
background: conic-gradient(red 180deg, #4AAE9B);
}
.conic-2 {
background: conic-gradient(red 180deg 90%, #4AAE9B);
}
Notice how a second position value for a color stop specifies the transition.
The color stops can jump to the next color immediately by eliminating the transition between two stops:
.conic-4 {
background: conic-gradient(cyan 25%, magenta 0 50%, yellow 0 75%, black 0);
}
You can specify the starting angle using the from keyword:
.conic {
background: conic-gradient(from 45deg, cyan, magenta, yellow);
}
Furthermore, you can use the at keyword to specify the center of the transition:
.conic {
background: conic-gradient(from 45deg at 65% 35%, cyan, magenta, yellow);
}
Unfortunately I can’t show an example of using at at this moment because at the time of this writing there’s a bug in the polyfill that would make all the other examples crash when viewed in a browser that relies on the polyfill.
For smooth transitions, have the last color stop be the same as the first one:
.conic {
background: conic-gradient(cyan, magenta, yellow, cyan);
}
There’s also a repeating-conic-gradient
function that can be used to create some interesting patterns with conic gradients:
.conic-repeating {
background: repeating-conic-gradient(red 10%, #4AAE9B 20%);
}
As of 2020, only 85% of devices worldwide support the conic-gradient
property. Thankfully though, there’s a polyfill by @LeaVerou that we can use to start using conic gradients now.
To use the polyfill simply add the scripts for Prefix-free and the conic gradient polyfill itself before the closing body tag in your pages:
<script src="/assets/polyfills/prefixfree.min.js"></script>
<script src="/assets/polyfills/conic-gradient.js"></script>
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