SVG Gradients - Radial
SVG Radial Gradient - <radialGradient>
The <radialGradient> element is used to define a radial gradient.
The <radialGradient> element must be nested within a <defs> tag. The <defs> tag is short for definitions and contains definition of special elements (such as gradients).
Example 1
Define an ellipse with a radial gradient from white to blue:
Here is the SVG code:
Example
<svg height="150" width="500">
<defs>
<radialGradient id="grad1" cx="50%" cy="50%" r="50%"
fx="50%" fy="50%">
<stop offset="0%" style="stop-color:rgb(255,255,255);
stop-opacity:0" />
<stop offset="100%" style="stop-color:rgb(0,0,255);stop-opacity:1" />
</radialGradient>
</defs>
<ellipse cx="200" cy="70" rx="85" ry="55"
fill="url(#grad1)" />
</svg>
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Code explanation:
- The id attribute of the <radialGradient> tag defines a unique name for the gradient
- The cx, cy and r attributes define the outermost circle and the fx and fy define the innermost circle
- The color range for a gradient can be composed of two or more colors. Each color is specified with a <stop> tag. The offset attribute is used to define where the gradient color begin and end
- The fill attribute links the ellipse element to the gradient
Example 2
Define another ellipse with a radial gradient from white to blue:
Here is the SVG code:
Example
<svg height="150" width="500">
<defs>
<radialGradient id="grad2" cx="20%" cy="30%" r="30%" fx="50%" fy="50%">
<stop offset="0%" style="stop-color:rgb(255,255,255);
stop-opacity:0" />
<stop offset="100%" style="stop-color:rgb(0,0,255);stop-opacity:1" />
</radialGradient>
</defs>
<ellipse cx="200" cy="70" rx="85" ry="55" fill="url(#grad2)" />
</svg>
Try it Yourself »