How to change color of SVG image using CSS (jQuery SVG image replacement)?

user_503546 0
Viewed 746247

This is a self Q&A of a handy piece of code I came up with.

Currently, there isn't an easy way to embed an SVG image and then have access to the SVG elements via CSS. There are various methods of using JS SVG frameworks, but they are overly complicated if all you are doing is making a simple icon with a rollover state.

So here is what I came up with, which I think is by far the easiest way to use SVG files on a website. It takes its concept from the early text-to-image replacement methods, but as far as I am aware has never been done for SVGs.

This is the question:

How do I embed an SVG and change its color in CSS without using a JS-SVG framework?

svg css jquery
18 Answers

TL/DR: GO here-> https://codepen.io/sosuke/pen/Pjoqqp

Explanation:

I'm assuming you have html something like this:

<img src="/img/source.svg" class="myClass">

Definitely go the filter route, ie. your svg is most likely black or white. You can apply a filter to get it to be whatever color you want, for example, I have a black svg that I want mint green. I first invert it to be white (which is technically all RGB colors on full) then play with the hue saturation etc. To get it right:

filter: invert(86%) sepia(21%) saturate(761%) hue-rotate(92deg) brightness(99%) contrast(107%);

Even better is that you could just use a tool to convert the hex you want into a filter for you: https://codepen.io/sosuke/pen/Pjoqqp

user_53144900

Here's a version for knockout.js based on the accepted answer:

Important: It does actually require jQuery too for the replacing, but I thought it may be useful to some.

ko.bindingHandlers.svgConvert =
    {
        'init': function ()
        {
            return { 'controlsDescendantBindings': true };
        },

        'update': function (element, valueAccessor, allBindings, viewModel, bindingContext)
        {
            var $img = $(element);
            var imgID = $img.attr('id');
            var imgClass = $img.attr('class');
            var imgURL = $img.attr('src');

            $.get(imgURL, function (data)
            {
                // Get the SVG tag, ignore the rest
                var $svg = $(data).find('svg');

                // Add replaced image's ID to the new SVG
                if (typeof imgID !== 'undefined')
                {
                    $svg = $svg.attr('id', imgID);
                }
                // Add replaced image's classes to the new SVG
                if (typeof imgClass !== 'undefined')
                {
                    $svg = $svg.attr('class', imgClass + ' replaced-svg');
                }

                // Remove any invalid XML tags as per http://validator.w3.org
                $svg = $svg.removeAttr('xmlns:a');

                // Replace image with new SVG
                $img.replaceWith($svg);

            }, 'xml');

        }
    };

Then just apply data-bind="svgConvert: true" to your img tag.

This solution completely replaces the img tag with a SVG and any additional bindings would not be respected.

Simon_169400

There is an open source library called SVGInject that uses the onload attribute to trigger the injection. You can find the GitHub project at https://github.com/iconfu/svg-inject

Here is a minimal example using SVGInject:

<html>
  <head>
    <script src="svg-inject.min.js"></script>
  </head>
  <body>
    <img src="image.svg" onload="SVGInject(this)" />
  </body>
</html>

After the image is loaded the onload="SVGInject(this) will trigger the injection and the <img> element will be replaced by the contents of the SVG file provided in the src attribute.

It solves several issues with SVG injection:

  1. SVGs can be hidden until injection has finished. This is important if a style is already applied during load time, which would otherwise cause a brief "unstyled content flash".

  2. The <img> elements inject themselved automatically. If you add SVGs dynamically, you don't have to worry about calling the injection function again.

  3. A random string is added to each ID in the SVG to avoid having the same ID multiple times in the document if an SVG is injected more than once.

SVGInject is plain Javascript and works with all browsers that support SVG.

Disclaimer: I am the co-author of SVGInject

user_38054580

Here's a no framework code, only pure js :

document.querySelectorAll('img.svg').forEach(function(element) {
            var imgID = element.getAttribute('id')
            var imgClass = element.getAttribute('class')
            var imgURL = element.getAttribute('src')

            xhr = new XMLHttpRequest()
            xhr.onreadystatechange = function() {
                if(xhr.readyState == 4 && xhr.status == 200) {
                    var svg = xhr.responseXML.getElementsByTagName('svg')[0];

                    if(imgID != null) {
                         svg.setAttribute('id', imgID);
                    }

                    if(imgClass != null) {
                         svg.setAttribute('class', imgClass + ' replaced-svg');
                    }

                    svg.removeAttribute('xmlns:a')

                    if(!svg.hasAttribute('viewBox') && svg.hasAttribute('height') && svg.hasAttribute('width')) {
                        svg.setAttribute('viewBox', '0 0 ' + svg.getAttribute('height') + ' ' + svg.getAttribute('width'))
                    }
                    element.parentElement.replaceChild(svg, element)
                }
            }
            xhr.open('GET', imgURL, true)
            xhr.send(null)
        })
user_31444800

You can use data-image for that. using data-image(data-URI) you can access SVG like inline.

Here is rollover effect using pure CSS and SVG.

I know it messy but you can do this way.

 .action-btn {
    background-size: 20px 20px;
    background-position: center center;
    background-repeat: no-repeat;
    border-width: 1px;
    border-style: solid;
    border-radius: 30px;
    height: 40px;
    width: 60px;
    display: inline-block;
 }

.delete {
     background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg version='1.1' id='Capa_1' fill='#FB404B' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' width='482.428px' height='482.429px' viewBox='0 0 482.428 482.429' style='enable-background:new 0 0 482.428 482.429;' xml:space='preserve'%3e%3cg%3e%3cg%3e%3cpath d='M381.163,57.799h-75.094C302.323,25.316,274.686,0,241.214,0c-33.471,0-61.104,25.315-64.85,57.799h-75.098 c-30.39,0-55.111,24.728-55.111,55.117v2.828c0,23.223,14.46,43.1,34.83,51.199v260.369c0,30.39,24.724,55.117,55.112,55.117 h210.236c30.389,0,55.111-24.729,55.111-55.117V166.944c20.369-8.1,34.83-27.977,34.83-51.199v-2.828 C436.274,82.527,411.551,57.799,381.163,57.799z M241.214,26.139c19.037,0,34.927,13.645,38.443,31.66h-76.879 C206.293,39.783,222.184,26.139,241.214,26.139z M375.305,427.312c0,15.978-13,28.979-28.973,28.979H136.096 c-15.973,0-28.973-13.002-28.973-28.979V170.861h268.182V427.312z M410.135,115.744c0,15.978-13,28.979-28.973,28.979H101.266 c-15.973,0-28.973-13.001-28.973-28.979v-2.828c0-15.978,13-28.979,28.973-28.979h279.897c15.973,0,28.973,13.001,28.973,28.979 V115.744z'/%3e%3cpath d='M171.144,422.863c7.218,0,13.069-5.853,13.069-13.068V262.641c0-7.216-5.852-13.07-13.069-13.07 c-7.217,0-13.069,5.854-13.069,13.07v147.154C158.074,417.012,163.926,422.863,171.144,422.863z'/%3e%3cpath d='M241.214,422.863c7.218,0,13.07-5.853,13.07-13.068V262.641c0-7.216-5.854-13.07-13.07-13.07 c-7.217,0-13.069,5.854-13.069,13.07v147.154C228.145,417.012,233.996,422.863,241.214,422.863z'/%3e%3cpath d='M311.284,422.863c7.217,0,13.068-5.853,13.068-13.068V262.641c0-7.216-5.852-13.07-13.068-13.07 c-7.219,0-13.07,5.854-13.07,13.07v147.154C298.213,417.012,304.067,422.863,311.284,422.863z'/%3e%3c/g%3e%3c/g%3e%3c/svg%3e ");
     border-color:#FB404B;
     
 }
 
 .delete:hover {
     background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg version='1.1' id='Capa_1' fill='#fff' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' width='482.428px' height='482.429px' viewBox='0 0 482.428 482.429' style='enable-background:new 0 0 482.428 482.429;' xml:space='preserve'%3e%3cg%3e%3cg%3e%3cpath d='M381.163,57.799h-75.094C302.323,25.316,274.686,0,241.214,0c-33.471,0-61.104,25.315-64.85,57.799h-75.098 c-30.39,0-55.111,24.728-55.111,55.117v2.828c0,23.223,14.46,43.1,34.83,51.199v260.369c0,30.39,24.724,55.117,55.112,55.117 h210.236c30.389,0,55.111-24.729,55.111-55.117V166.944c20.369-8.1,34.83-27.977,34.83-51.199v-2.828 C436.274,82.527,411.551,57.799,381.163,57.799z M241.214,26.139c19.037,0,34.927,13.645,38.443,31.66h-76.879 C206.293,39.783,222.184,26.139,241.214,26.139z M375.305,427.312c0,15.978-13,28.979-28.973,28.979H136.096 c-15.973,0-28.973-13.002-28.973-28.979V170.861h268.182V427.312z M410.135,115.744c0,15.978-13,28.979-28.973,28.979H101.266 c-15.973,0-28.973-13.001-28.973-28.979v-2.828c0-15.978,13-28.979,28.973-28.979h279.897c15.973,0,28.973,13.001,28.973,28.979 V115.744z'/%3e%3cpath d='M171.144,422.863c7.218,0,13.069-5.853,13.069-13.068V262.641c0-7.216-5.852-13.07-13.069-13.07 c-7.217,0-13.069,5.854-13.069,13.07v147.154C158.074,417.012,163.926,422.863,171.144,422.863z'/%3e%3cpath d='M241.214,422.863c7.218,0,13.07-5.853,13.07-13.068V262.641c0-7.216-5.854-13.07-13.07-13.07 c-7.217,0-13.069,5.854-13.069,13.07v147.154C228.145,417.012,233.996,422.863,241.214,422.863z'/%3e%3cpath d='M311.284,422.863c7.217,0,13.068-5.853,13.068-13.068V262.641c0-7.216-5.852-13.07-13.068-13.07 c-7.219,0-13.07,5.854-13.07,13.07v147.154C298.213,417.012,304.067,422.863,311.284,422.863z'/%3e%3c/g%3e%3c/g%3e%3c/svg%3e ");        
     background-color: #FB404B;
    }
<a class="action-btn delete">&nbsp;</a>

You can convert your svg to data url here

  1. https://codepen.io/elliz/full/ygvgay
  2. https://websemantics.uk/tools/svg-to-background-image-conversion/
user_37104810

Since SVG is basically code, you need just contents. I used PHP to obtain content, but you can use whatever you want.

<?php
$content    = file_get_contents($pathToSVG);
?>

Then, I've printed content "as is" inside a div container

<div class="fill-class"><?php echo $content;?></div>

To finnaly set rule to container's SVG childs on CSS

.fill-class > svg { 
    fill: orange;
}

I got this results with a material icon SVG:

  1. Mozilla Firefox 59.0.2 (64-bit) Linux

enter image description here

  1. Google Chrome66.0.3359.181 (Build oficial) (64 bits) Linux

enter image description here

  1. Opera 53.0.2907.37 Linux

enter image description here

user_34264590

for :hover event animations we can left the styles inside svg file, like a

<svg xmlns="http://www.w3.org/2000/svg">
<defs>
  <style>
  rect {
    fill:rgb(165,225,75);
    stroke:none;
    transition: 550ms ease-in-out;
    transform-origin:125px 125px;
  }
  rect:hover {
    fill:rgb(75,165,225);
    transform:rotate(360deg);
  }
  </style>
</defs>
  <rect x='50' y='50' width='150' height='150'/>
</svg>

check this on svgshare

user_70367240 
.carousel-control-prev-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='rgb(3,122,247)' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath d='M5.25 0l-4 4 4 4 1.5-1.5L4.25 4l2.5-2.5L5.25 0z'/%3e%3c/svg%3e");
}
  • chnage color : fill='rgb(3,122,247)'
user_126618770
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