更改 svg+xml 的颜色；base64 图像答案

【问题标题】：Change color of a svg+xml;base64 image更改 svg+xml 的颜色；base64 图像
【发布时间】：2017-09-14 23:10:18
【问题描述】：

这是我的代码：

.arrow
{
  position: relative;
  bottom: -2rem;
  left: 50%;
  margin-left:-20px;
  width: 40px;
  height: 40px;

  /**
   * Dark Arrow Down
   */
  background-image: url(data:image/svg+xml;base64,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);
  background-size: contain;
}

.bounce {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
  60% {
    transform: translateY(-15px);
  }
}

background image 中的图像是黑色的。我想改变这张图片的颜色。我可以添加叠加层或其他东西吗？还是我有来创建一个新的 svg+xml;base64 图像？因为我不知道该怎么做。

【问题讨论】：

你想换成什么样的颜色？
将“背景图像：”中箭头图像的颜色转换为 DodgerBlue (#1E90FF)
将其从base64解码为字符串，替换字符串中的颜色，然后将新数据编码为base64。

标签： html css svg

【解决方案1】：

你不能这样做。您将不得不创建另一个图像。

【讨论】：

谢谢！创作过程有那么难吗？
我尝试了 Robert Longson 告诉我们的方法：将 base64 解码为 UTF-8，然后您得到了：SVG 的 xml 版本，您将颜色更改为 #1E90FF 并将字符串编码为 base64。然后你得到了你的照片:)