编辑您的SVG文件，将fill="currentColor"添加到SVG标记中，并确保从文件中删除任何其他填充属性。

例如:

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 139.435269383854" id="img" fill="currentColor">...
</svg>

注意，currentColor是一个关键字(不是使用的固定颜色)。

在此之后，您可以使用CSS更改颜色，通过设置元素的颜色属性或从它的父元素。

例子:

.div-with-svg-inside {
    color: red;
}

我忘了说，你必须这样插入SVG:

<svg>
   <use xlink:href='/assets/file.svg#img' href="/assets/file.svg#img"></use>
</svg>

如果image来自某个变量，那么

<svg>
  <use [attr.xlink:href]="somevariable + '#img'" [attr.href]="somevariable + '#img'"></use>
</svg>

Note that `#img` is the id of the `svg` tag inside svg file. Also note `xlink:href` has been deprecated instead you should use `href` or use can use both to support older browser versions.

Another way of doing it: [https://css-tricks.com/cascading-svg-fill-color/][1]


  [1]: https://css-tricks.com/cascading-svg-fill-color/

直接到svg填充css将不工作，你可以使用如下

<style>
svg path {
    fill: red;
}
</style>
<svg xmlns="http://www.w3.org/2000/svg" width="20.666" height="59.084" viewBox="0 0 20.666 59.084"><g transform="translate(-639.749 -3139)"><path d="M648.536,3173.876c0-2.875-1.725-3.8-3.471-3.8-1.683,0-3.49.9-3.49,3.8,0,3,1.786,3.8,3.49,3.8C646.811,3177.676,648.536,3176.769,648.536,3173.876Zm-3.471,2.341c-.883,0-1.437-.513-1.437-2.341,0-1.971.615-2.381,1.437-2.381.862,0,1.438.349,1.438,2.381,0,1.907-.616,2.339-1.438,2.339Z" fill="#142312"/><path d="M653.471,3170.076a1.565,1.565,0,0,0-1.416.9l-6.558,13.888h1.2a1.565,1.565,0,0,0,1.416-.9l6.559-13.887Z" fill="#142312"/><path d="M655.107,3177.263c-1.684,0-3.471.9-3.471,3.8,0,3,1.766,3.8,3.471,3.8,1.745,0,3.49-.9,3.49-3.8C658.6,3178.186,656.851,3177.263,655.107,3177.263Zm0,6.139c-.884,0-1.438-.514-1.438-2.34,0-1.972.617-2.381,1.438-2.381.862,0,1.437.349,1.437,2.381,0,1.909-.616,2.34-1.437,2.34Z" fill="#142312"/><path d="M656.263,3159.023l-1.49-14.063a1.35,1.35,0,0,0,.329-.293,1.319,1.319,0,0,0,.268-1.123l-.753-3.49a1.328,1.328,0,0,0-1.306-1.054h-6.448a1.336,1.336,0,0,0-1.311,1.068l-.71,3.493a1.344,1.344,0,0,0,.276,1.112,1.532,1.532,0,0,0,.283.262l-1.489,14.087c-1.7,1.727-4.153,4.871-4.153,8.638v28.924a1.339,1.339,0,0,0,1.168,1.49,1.357,1.357,0,0,0,.17.01h17.981a1.366,1.366,0,0,0,1.337-1.366v-29.059C660.414,3163.893,657.963,3160.749,656.263,3159.023Zm-8.307-17.349h4.274l.176.815H647.79Zm9.785,43.634v10.1H642.434v-17.253a4.728,4.728,0,0,1-2.028-4.284,4.661,4.661,0,0,1,2.028-4.215v-2c0-3.162,2.581-5.986,3.687-7.059a1.356,1.356,0,0,0,.4-.819l1.542-14.614H652.1l1.545,14.618a1.362,1.362,0,0,0,.4.819c1.109,1.072,3.688,3.9,3.688,7.059v9.153a5.457,5.457,0,0,1,0,8.5Z" fill="#142312"/></g></svg>

这对我很有效

如果你只是在真实颜色和黑白之间切换图像，你可以设置一个选择器为:

{过滤器:没有;}

另一个是:

{filter:grayscale(100%);}

为了扩展@gringo的答案，在其他答案中描述的Javascript方法是有效的，但需要用户下载不必要的图像文件，而且在我看来，它会膨胀你的代码。

I think a better approach would be to to migrate all 1-color vector graphics to a webfont file. I've used Fort Awesome in the past, and it works great to combine your custom icons/images in SVG format, along with any 3rd party icons you may be using (Font Awesome, Bootstrap icons, etc.) into a single webfont file the user has to download. You can also customize it, so you only include the 3rd party icons you're using. This reduces the number of requests the page has to make, and you're overall page weight, especially if you're already including any 3rd party icons libraries.

如果你更喜欢一个更面向开发的选项，你可以谷歌"npm svg webfont"，并使用一个最适合你的环境的节点模块。

一旦你完成了这两个选项中的任何一个，那么你就可以很容易地通过CSS改变颜色，而且很可能，你已经在这个过程中加快了你的网站。

您可以将SVG设置为掩码。通过这种方式设置背景色将充当填充色。

HTML

<div class="logo"></div>

CSS

.logo {
  background-color: red;
  -webkit-mask: url(logo.svg) no-repeat center;
  mask: url(logo.svg) no-repeat center;
}

JSFiddle： https://jsfiddle.net/KuhlTime/2j8exgcb/ MDN： https://developer.mozilla.org/en-US/docs/Web/CSS/mask

请检查您的浏览器是否支持此功能: https://caniuse.com/#search=mask

使用滤镜转换为任何颜色。

我最近发现了这个解决方案，希望有人能使用它。 由于该解决方案使用过滤器，它可以用于任何类型的图像。不仅仅是svg。

如果你有一张单色图像，你只是想改变它的颜色，你可以在一些滤镜的帮助下做到这一点。当然，它也适用于多色图像，但你不能针对特定的颜色。只有整个图像。

过滤器来自于如何仅使用CSS过滤器将黑色转换为任何给定颜色中提出的脚本 如果您想将白色更改为任何颜色，您可以在每个过滤器中调整反转值。

.startAsBlack{ display: inline-block; width: 50px; height: 50px; background: black; } .black-green{ filter: invert(43%) sepia(96%) saturate(1237%) hue-rotate(88deg) brightness(128%) contrast(119%); } .black-red{ filter: invert(37%) sepia(93%) saturate(7471%) hue-rotate(356deg) brightness(91%) contrast(135%); } .black-blue{ filter: invert(12%) sepia(83%) saturate(5841%) hue-rotate(244deg) brightness(87%) contrast(153%); } .black-purple{ filter: invert(18%) sepia(98%) saturate(2657%) hue-rotate(289deg) brightness(121%) contrast(140%); } Black to any color: <br/> <div class="startAsBlack black-green"></div> <div class="startAsBlack black-red"></div> <div class="startAsBlack black-blue"></div> <div class="startAsBlack black-purple"></div>